Get the answers you've been searching for with IDNLearn.com. Join our Q&A platform to receive prompt and accurate responses from knowledgeable professionals in various fields.
Sagot :
To solve the equation \(\frac{(x+3)^2}{(x-3)^2} = \frac{x-1}{x+1} + \frac{2(7x+1)}{x^2 + 2x - 3}\), we follow these steps:
1. Simplify the right-hand side of the equation:
First, notice that the quadratic expression in the denominator of the second fraction on the right-hand side can be factored:
[tex]\[ x^2 + 2x - 3 = (x + 3)(x - 1). \][/tex]
Thus, the right-hand side can be written as:
[tex]\[ \frac{x-1}{x+1} + \frac{2(7x+1)}{(x + 3)(x - 1)}. \][/tex]
2. Combine the fractions on the right-hand side:
To combine the right-hand side into a single fraction:
[tex]\[ \frac{x-1}{x+1} + \frac{2(7x+1)}{(x + 3)(x - 1)}, \][/tex]
we need a common denominator. The combined denominator is:
[tex]\[ (x + 1)(x + 3)(x - 1). \][/tex]
Rewrite each term with the common denominator:
[tex]\[ \frac{(x-1)(x+3)}{(x+1)(x+3)(x-1)} + \frac{2(7x+1)(x+1)}{(x+1)(x + 3)(x - 1)}. \][/tex]
Notice that \((x-1)(x+3)\) cancels out in the first fraction, reducing to:
[tex]\[ \frac{x-1}{x+1} = \frac{(x^2 - 1)}{x^2 + 4x + 3}, \][/tex]
when adding these,
[tex]\[ \frac{(x^2 - 1) + 2(7x+1)(x+1)}{(x+1)(x+3)}. \][/tex]
3. Simplify the combined numerator:
Now, simplify the numerator of the combined fraction:
[tex]\[ (x^2 - 1) + 2(7x+1)(x+1). \][/tex]
Distribute and expand:
[tex]\[ 2(7x+1)(x+1) = 2[7x^2 + 7x + x + 1] = 2[7x^2 + 8x + 1] = 14x^2 + 16x + 2. \][/tex]
Add this to the \(x^2 - 1\) term:
[tex]\[ (x^2 - 1) + 14x^2 + 16x + 2 = 15x^2 + 16x + 1. \][/tex]
So, the combined fraction on the right-hand side is:
[tex]\[ \frac{15x^2 + 16x + 1}{x^3 + 3x^2 - x - 3}. \][/tex]
4. Rewrite the equation:
Now, the original equation becomes:
[tex]\[ \frac{(x+3)^2}{(x-3)^2} = \frac{15x^2 + 16x + 1}{x^3 + 3x^2 - x - 3}. \][/tex]
5. Solve the equation:
To solve \(\frac{(x+3)^2}{(x-3)^2} = \frac{15x^2 + 16x + 1}{x^3 + 3x^2 - x - 3}\), we equate the numerators and solve for \(x\):
[tex]\[ (x + 3)^2 = \text{numerator of the right-hand side}. \][/tex]
After this equating and solving, we end up with the solutions being:
[tex]\[ x \text{ values are } 7/36 + (-1/2 - \frac{\sqrt{3}I}{2})\left(\frac{\sqrt{3709}}{144} + \frac{22375}{46656}\right)^{1/3} + \frac{481}{1296(-1/2 - \frac{\sqrt{3}I}{2})\left(\frac{\sqrt{3709}}{144} + \frac{22375}{46656}\right)^{1/3}}, \][/tex]
[tex]\[ 7/36 + \frac{481}{1296(-1/2 + \frac{\sqrt{3}I}{2})\left(\frac{\sqrt{3709}}{144} + \frac{22375}{46656}\right)^{1/3}} + (-1/2 + \frac{\sqrt{3}I}{2})\left(\frac{\sqrt{3709}}{144} + \frac{22375}{46656}\right)^{1/3}, \][/tex]
[tex]\[ 7/36 + \frac{481}{1296\left(\frac{\sqrt{3709}}{144} + \frac{22375}{46656}\right)^{1/3}} + \left(\frac{\sqrt{3709}}{144} + \frac{22375}{46656}\right)^{1/3}. \][/tex]
So, summarizing the solutions:
[tex]\[ x_1 = \frac{7}{36} + (-1/2 - \frac{\sqrt{3}I}{2}) (\frac{\sqrt{3709}}{144} + \frac{22375}{46656})^{1/3} + \frac{481}{1296 (-1/2 - \frac{\sqrt{3}I}{2})(\frac{\sqrt{3709}}{144} + \frac{22375}{46656})^{1/3}}, \][/tex]
[tex]\[ x_2 = \frac{7}{36} + \frac{481}{1296(-1/2 + \frac{\sqrt{3}I}{2})(\frac{\sqrt{3709}}{144} + \frac{22375}{46656})^{1/3}} + (-1/2 + \frac{\sqrt{3}I}{2}) (\frac{\sqrt{3709}}{144} + \frac{22375}{46656})^{1/3}, \][/tex]
[tex]\[ x_3 = \frac{7}{36} + \frac{481}{1296 (\frac{\sqrt{3709}}/144 + \frac{22375}{46656})^{1/3}} + (\frac{\sqrt{3709}}{144} + \frac{22375}{46656})^{1/3}. \][/tex]
1. Simplify the right-hand side of the equation:
First, notice that the quadratic expression in the denominator of the second fraction on the right-hand side can be factored:
[tex]\[ x^2 + 2x - 3 = (x + 3)(x - 1). \][/tex]
Thus, the right-hand side can be written as:
[tex]\[ \frac{x-1}{x+1} + \frac{2(7x+1)}{(x + 3)(x - 1)}. \][/tex]
2. Combine the fractions on the right-hand side:
To combine the right-hand side into a single fraction:
[tex]\[ \frac{x-1}{x+1} + \frac{2(7x+1)}{(x + 3)(x - 1)}, \][/tex]
we need a common denominator. The combined denominator is:
[tex]\[ (x + 1)(x + 3)(x - 1). \][/tex]
Rewrite each term with the common denominator:
[tex]\[ \frac{(x-1)(x+3)}{(x+1)(x+3)(x-1)} + \frac{2(7x+1)(x+1)}{(x+1)(x + 3)(x - 1)}. \][/tex]
Notice that \((x-1)(x+3)\) cancels out in the first fraction, reducing to:
[tex]\[ \frac{x-1}{x+1} = \frac{(x^2 - 1)}{x^2 + 4x + 3}, \][/tex]
when adding these,
[tex]\[ \frac{(x^2 - 1) + 2(7x+1)(x+1)}{(x+1)(x+3)}. \][/tex]
3. Simplify the combined numerator:
Now, simplify the numerator of the combined fraction:
[tex]\[ (x^2 - 1) + 2(7x+1)(x+1). \][/tex]
Distribute and expand:
[tex]\[ 2(7x+1)(x+1) = 2[7x^2 + 7x + x + 1] = 2[7x^2 + 8x + 1] = 14x^2 + 16x + 2. \][/tex]
Add this to the \(x^2 - 1\) term:
[tex]\[ (x^2 - 1) + 14x^2 + 16x + 2 = 15x^2 + 16x + 1. \][/tex]
So, the combined fraction on the right-hand side is:
[tex]\[ \frac{15x^2 + 16x + 1}{x^3 + 3x^2 - x - 3}. \][/tex]
4. Rewrite the equation:
Now, the original equation becomes:
[tex]\[ \frac{(x+3)^2}{(x-3)^2} = \frac{15x^2 + 16x + 1}{x^3 + 3x^2 - x - 3}. \][/tex]
5. Solve the equation:
To solve \(\frac{(x+3)^2}{(x-3)^2} = \frac{15x^2 + 16x + 1}{x^3 + 3x^2 - x - 3}\), we equate the numerators and solve for \(x\):
[tex]\[ (x + 3)^2 = \text{numerator of the right-hand side}. \][/tex]
After this equating and solving, we end up with the solutions being:
[tex]\[ x \text{ values are } 7/36 + (-1/2 - \frac{\sqrt{3}I}{2})\left(\frac{\sqrt{3709}}{144} + \frac{22375}{46656}\right)^{1/3} + \frac{481}{1296(-1/2 - \frac{\sqrt{3}I}{2})\left(\frac{\sqrt{3709}}{144} + \frac{22375}{46656}\right)^{1/3}}, \][/tex]
[tex]\[ 7/36 + \frac{481}{1296(-1/2 + \frac{\sqrt{3}I}{2})\left(\frac{\sqrt{3709}}{144} + \frac{22375}{46656}\right)^{1/3}} + (-1/2 + \frac{\sqrt{3}I}{2})\left(\frac{\sqrt{3709}}{144} + \frac{22375}{46656}\right)^{1/3}, \][/tex]
[tex]\[ 7/36 + \frac{481}{1296\left(\frac{\sqrt{3709}}{144} + \frac{22375}{46656}\right)^{1/3}} + \left(\frac{\sqrt{3709}}{144} + \frac{22375}{46656}\right)^{1/3}. \][/tex]
So, summarizing the solutions:
[tex]\[ x_1 = \frac{7}{36} + (-1/2 - \frac{\sqrt{3}I}{2}) (\frac{\sqrt{3709}}{144} + \frac{22375}{46656})^{1/3} + \frac{481}{1296 (-1/2 - \frac{\sqrt{3}I}{2})(\frac{\sqrt{3709}}{144} + \frac{22375}{46656})^{1/3}}, \][/tex]
[tex]\[ x_2 = \frac{7}{36} + \frac{481}{1296(-1/2 + \frac{\sqrt{3}I}{2})(\frac{\sqrt{3709}}{144} + \frac{22375}{46656})^{1/3}} + (-1/2 + \frac{\sqrt{3}I}{2}) (\frac{\sqrt{3709}}{144} + \frac{22375}{46656})^{1/3}, \][/tex]
[tex]\[ x_3 = \frac{7}{36} + \frac{481}{1296 (\frac{\sqrt{3709}}/144 + \frac{22375}{46656})^{1/3}} + (\frac{\sqrt{3709}}{144} + \frac{22375}{46656})^{1/3}. \][/tex]
Your participation means a lot to us. Keep sharing information and solutions. This community grows thanks to the amazing contributions from members like you. For trustworthy and accurate answers, visit IDNLearn.com. Thanks for stopping by, and see you next time for more solutions.