How do you subtract (x^2-8x+7)-(6x^2+7x-3)(x28x+7)(6x2+7x3)?

1 Answer
Feb 5, 2015

You need to remember that the - is actually a -11 in front of the second expression.

(x^2-8x+7)-1(6x^2+7x-3)(x28x+7)1(6x2+7x3)

The first set of parentheses can drop since there is merely a 1 in front of them. You will need to distribute the -11 to the second set of parentheses.

x^2-8x+7-6x^2-7x+3x28x+76x27x+3

Now you are ready to combine like terms. Remember that the sign in front of the term moves with the term.

x^2-6x^2-8x-7x+7+3x26x28x7x+7+3

Giving me the following answer:

-5x^2-15x+105x215x+10