Question

Subtract (−2x^4−2x^3+8x^2+2)−(x^4−5x^3+2x+7)

Answer 1

-3x^4 +3x^3 +8x^2 -2x -5

Explanation:

(−2x^4−2x^3+8x^2+2)−(x^4−5x^3+2x+7) =

(−2x^4−2x^3+8x^2+2)−1(x^4−5x^3+2x+7) =

−2x^4−2x^3+8x^2+2+ −x^4+5x^3-2x-7) =

combine like terms:

-3x^4 +3x^3 +8x^2 -2x -5

Answer 2

You would subtract each like term from eachother giving you,

-3
`x^(4)` + 3
`x^(3)` +8
`x^(2)` + 2x + 7