Question

Victoria was given the expression 5x - 4x^2-1+X-8x^2+7 and asked to
simplify it. How can she simplify the expression?
​

Answer 1

Answer:  $-6(2x+1)(x-1)$

Step-by-step explanation:

Given the expression in the form $5x-4x^2-1+x-8x^2+7$, we know that Victoria can simplify it by adding the like terms:

$-12x^2+6x+6$

She can also factor out -6:

$-6(2x^2-x-1)$

Now, she needs  to factor the coefficient of the second term rewrite it as (1-2), then:

$-6(2x^2+(1-2)x-1)$

$-6(2x^2-2x+x-1)$

Now she needs to group the terms as following:

$-6[(2x^2-2x)+(x-1)]$

And factor out 2x:

$-6[2x(x-1)+(x-1)]$

Finally, she has to factor out $(x-1)$. Therefore, she gets:

$-6(2x+1)(x-1)$

Answer 2

Answer:

-12x^2+6x+6

this is the answer for ap ex