Question

Perform the operation. (-4x^2-2x-6)-(-7x^2-2x-2)

Answer 1

Answer:

$3x^{2} -4$

Step-by-step explanation:

Before solving this you have to know that,

( - ) × ( - ) = ( + )

( + ) × ( + ) = ( + )

( - ) × ( + ) = ( - )

Let us solve now.

$(-4x^2-2x-6)-(-7x^2-2x-2)$

$(-4x^2-2x-6)+7x^{2} +2x+2$

$-4x^2-2x-6+7x^{2} +2x+2$

Now combine like terms

$-4x^{2}+7x^{2} -2x+2x-6+2$

$3x^{2} -4$

Hope this helps you .

Let me know if you have any other questions :-)

Answer 2

Answer:

3x²-4

Step-by-step explanation:

1 distribute

(-4x²-2x-6)+7x²+2x+2

2 eliminate redudant parentheses

-4x² -2x - 6+7x² +2x+2

3 Add the numbers

-4x²-2x-4+7x²+2x

4 Combine like terms

3x²-2x-4+2x

5 Combine like terms

3x²-4