Solve your doubts and expand your knowledge with IDNLearn.com's extensive Q&A database. Explore a wide array of topics and find reliable answers from our experienced community members.
Sagot :
To determine the number of solutions to the equation [tex]\( 6x - 2x^2 = 7 \)[/tex], we first rewrite it in standard form. The standard form of a quadratic equation is [tex]\( ax^2 + bx + c = 0 \)[/tex]. We proceed as follows:
1. Start with the given equation:
[tex]\[ 6x - 2x^2 = 7 \][/tex]
2. Move all terms to one side of the equation to set it to zero:
[tex]\[ -2x^2 + 6x - 7 = 0 \][/tex]
Next, let's identify the coefficients in the standard quadratic form [tex]\( ax^2 + bx + c = 0 \)[/tex]:
- [tex]\( a = -2 \)[/tex]
- [tex]\( b = 6 \)[/tex]
- [tex]\( c = -7 \)[/tex]
Now, we calculate the discriminant. The discriminant [tex]\(\Delta\)[/tex] of a quadratic equation [tex]\( ax^2 + bx + c = 0 \)[/tex] is given by:
[tex]\[ \Delta = b^2 - 4ac \][/tex]
Substitute the values of [tex]\( a \)[/tex], [tex]\( b \)[/tex], and [tex]\( c \)[/tex] into the discriminant formula:
[tex]\[ \Delta = (6)^2 - 4(-2)(-7) \][/tex]
[tex]\[ \Delta = 36 - 56 \][/tex]
[tex]\[ \Delta = -20 \][/tex]
The number of solutions of the quadratic equation depends on the value of the discriminant:
- If [tex]\(\Delta > 0\)[/tex], there are two distinct real solutions.
- If [tex]\(\Delta = 0\)[/tex], there is exactly one real solution.
- If [tex]\(\Delta < 0\)[/tex], there are no real solutions.
Since the discriminant [tex]\(\Delta = -20\)[/tex] is less than zero, there are no real solutions to the given quadratic equation.
Thus, the given polynomial has exactly [tex]\(\boxed{0}\)[/tex] solution(s).
1. Start with the given equation:
[tex]\[ 6x - 2x^2 = 7 \][/tex]
2. Move all terms to one side of the equation to set it to zero:
[tex]\[ -2x^2 + 6x - 7 = 0 \][/tex]
Next, let's identify the coefficients in the standard quadratic form [tex]\( ax^2 + bx + c = 0 \)[/tex]:
- [tex]\( a = -2 \)[/tex]
- [tex]\( b = 6 \)[/tex]
- [tex]\( c = -7 \)[/tex]
Now, we calculate the discriminant. The discriminant [tex]\(\Delta\)[/tex] of a quadratic equation [tex]\( ax^2 + bx + c = 0 \)[/tex] is given by:
[tex]\[ \Delta = b^2 - 4ac \][/tex]
Substitute the values of [tex]\( a \)[/tex], [tex]\( b \)[/tex], and [tex]\( c \)[/tex] into the discriminant formula:
[tex]\[ \Delta = (6)^2 - 4(-2)(-7) \][/tex]
[tex]\[ \Delta = 36 - 56 \][/tex]
[tex]\[ \Delta = -20 \][/tex]
The number of solutions of the quadratic equation depends on the value of the discriminant:
- If [tex]\(\Delta > 0\)[/tex], there are two distinct real solutions.
- If [tex]\(\Delta = 0\)[/tex], there is exactly one real solution.
- If [tex]\(\Delta < 0\)[/tex], there are no real solutions.
Since the discriminant [tex]\(\Delta = -20\)[/tex] is less than zero, there are no real solutions to the given quadratic equation.
Thus, the given polynomial has exactly [tex]\(\boxed{0}\)[/tex] solution(s).
We appreciate your contributions to this forum. Don't forget to check back for the latest answers. Keep asking, answering, and sharing useful information. Thank you for choosing IDNLearn.com for your queries. We’re here to provide accurate answers, so visit us again soon.