2.

2x²+ 8 - 4x + 3x - 6x² + 7

5 answers

Simplifying this expression by combining like terms, we get:
-4x² - x + 15
2x^2+8-4x+3x-6x^2+7
2x^2+15-4x+3x-6x^2
2x^2+15-x-6x^2
-4x^2+15-x
Answer-(-4x^2-x+15)
Your answer is correct! Another way to write it is -4x^2 - x + 15.
3. 2x2 + 6x – 7x + 8 – 3x2 + 1 (1 point)
2x2 + x + 9
–2x2 – x – 9
–x2 – x + 9
x2 + 9
By combining like terms, we get:

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

Simplifying further,

-x^2 - x + 9

So, the answer is option C: -x^2 - x + 9.