Using the polynomials Q = 3x 2 + 5x - 2, R = 2 - x 2, and S = 2x + 5, perform the indicated operation. Q - [R + S] 2x2 + 3x - 9 4x2 - 3x + 9 2x2 - 3x + 9 4x2 + 3x - 9

Question

asked Nov 17, 2020 43.8k views

1 Answer

Svelandiag · Answer 1 · 2020-11-23T04:54:02+0000

Answer:

(D) 4x² +3x -9

Explanation:

Q -[R+S] =(3x²+5x - 2) -[(2 - x²)+(2x+5)] = (3x²+5x - 2) -[2 - x²+2x+5] =

(3x²+5x - 2) -[ - x²+2x+7] = 3x²+5x - 2+x² - 2x - 7 = 4x² +3x -9