Question

Subtract polynomials:
(-4x^3+5x^2-x+3)-5(x^4-2x^3+x^2)

Answer 1

9514 1404 393

Answer:

-5x^4 +6x^3 -x +3

Explanation:

First, eliminate parentheses.

(-4x^3+5x^2-x+3)-5(x^4-2x^3+x^2)

= -4x^3 +5x^2 -x +3 -5x^4 +10x^3 -5x^2

Then collect terms.

= -5x^4 +(-4+10)x^3 +(5 -5)x^2 -x +3

= -5x^4 +6x^3 -x +3