Question

What is the difference of the two polynomials?

(9x2 + 8x) – (2x2 + 3x)

Answer 1

(9x^2+8x)-(2x^2+3x)
9x^2+8x-2x^2-3x
7x^2+5x

Answer 2

(9x² + 8x) - (2x² + 3x)

= 7x² + 5x

Explanation:

(9x² + 8x) - (2x² + 3x)

open the bracket

= 9x² + 8x - 2x² - 3x

collect like terms

= 9x² - 2x² + 8x - 3x

= 7x² + 5x