Question

0 15 Solve: (4x⁴ - 3x³- 4x) + (- 3x⁴ + 4x³- 8x²) -
(8x³ + 2x²)​

Answer 1

Answer:

(4x⁴-3x³-4x)+(-3x⁴+4x³-8x²)-(8x³+2x²).

4x⁴-3x³-4x-3x⁴+4x³-8x²-8x³-2x². (Because +×-=-, +×+=+ & -×+=-).

4x⁴-3x⁴-3x³+4x³-8x³-8x²-2x²-4x.

1x⁴+1x³-8x³-10x²-4x. (Because -×-=+).

x⁴-7x³-10x²-4x.

I think this is your answer.