Question

substract the sum of (4x3+2x2-5) and (15x-x3-x2) from the sum of (9+6x-2x2) and ( 4x-1-5x3+x2)​

Answer 1

Step-by-step explanation:

taking the sum of first 2 expressions:

(4x³+2x²-5) + (15x-x³-x²)

= 3x³ + x²+15x-5 --------1

sum of last 2 expressions

(9+6x-2x²) + (4x-1-5x³+x²)

= -5x³-x²+10x+8 --------2

now subtracting 2 - 1

-5x³-x²+10x+8 - (3x³+x²+15x-5)

= -8x³-2x²-5x+13