Question

From the sum of 3x2 – 5x + 2 and −5x2 – 8x + 9 subtract 4x2 – 7x + 9.

Answer 1

Answer:

-6x^2 - 6x + 2

Step-by-step explanation:

3x^2 - 5x + 2 + (-5x^2) - 8x + 9

3x^2 - 13x + 11 - 5x^2

-2x^2 - 13x + 11 - (4x^2 - 7x + 9)

-2x^2 - 13x + 11 - 4x^2 + 7x - 9

-6x^2 - 6 x + 2