Question

#97 please!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answer 1

Answer is B

3(x²-1)-(ײ-7×+10)

= 3ײ-3 -ײ+7-10 ....because we expanded the brackets by multiplying everything just outside it

= 2ײ+7×-13

Answer 2

`2x^2+7x-13.`

Explanation:

1. Write the expression.

`3(x^2-1)-(x^2-7x+10)`

2. Solve the parentheses.

`(3)(x^2)+(3)(-1)-x^2+7x-10\\ \\3x^2-3-x^2+7x-10`

3. Simplify by adding up like terms.

`2x^2+7x-13`