Question

- 4x2
+10
+
2x2–5x -7

Answer 1

-2x^2-5x+3

Explanation:

-4x^2+2x^2=-2x^2 10-7=3

Answer 2

−2x^2−5x+3

Explanation:

simplify

−4x^2 + 10 + 2x^2 −5x −7

= −4x^2 + 10 + 2x^2 + −5x +−7

combine like terms:

= −4x^2 + 10 + 2x^2 + −5x + −7

= (−4x^2 + 2x^2) + (−5x) + (10+ −7)

= −2x^2 + −5x + 3