Question

(4x³-5x²-8x+7)+(2x-3x²+9x³-4)-(3x+2x³-9x2)​

Answer 1

Answer: 11x³-8x²- 9x+21

Step-by-step explanation:

=(4x³-5x²-8x+7)+(2x-3x²+9x³-4)-(3x+2x³-18)

= 4x³-5x²-8x+7+2x-3x²+9x³-4-3x-2x³+18

=(4x³+9x³-2x³)+(-5x²-3x²)+(-8x+2x-3x)+(7-4+18)

= 11x³-8x²- 9x+21.

Answer 2

Answer:

hope it helps you!!!!!!!