Join IDNLearn.com and start getting the answers you've been searching for. Our community provides accurate and timely answers to help you understand and solve any issue.

4. Which is the standard form of [tex]x^2 - 3 = 2x - 4x^2 + 6[/tex]?

A. [tex]4x^2 + 2x + 6 = 0[/tex]
B. [tex]5x^2 - 2x - 9 = 0[/tex]
C. [tex]-5x^2 + 2x + 3 = 0[/tex]
D. [tex]3x^2 + 3 = 0[/tex]


Sagot :

To determine the standard form of the given equation [tex]\( x^2 - 3 = 2x - 4x^2 + 6 \)[/tex], we need to rearrange all terms so that we have a single quadratic expression set equal to zero.

Here is the step-by-step process:

1. Write down the original equation:
[tex]\[ x^2 - 3 = 2x - 4x^2 + 6 \][/tex]

2. Move all terms to the left side to set the equation to zero:
[tex]\[ x^2 - 3 - 2x + 4x^2 - 6 = 0 \][/tex]

3. Combine the like terms on the left side:
- Combine the [tex]\( x^2 \)[/tex] terms:
[tex]\[ x^2 + 4x^2 = 5x^2 \][/tex]
- Combine the linear terms:
[tex]\[ -2x \][/tex]
- Combine the constant terms:
[tex]\[ -3 - 6 = -9 \][/tex]

Putting these together, we get:
[tex]\[ 5x^2 - 2x - 9 = 0 \][/tex]

Thus, the standard form of the equation [tex]\( x^2 - 3 = 2x - 4x^2 + 6 \)[/tex] is:
[tex]\[ \boxed{5x^2 - 2x - 9 = 0} \][/tex]

So, the correct answer is:
[tex]\[ 5x^2 - 2x - 9 = 0 \][/tex]