Using the polynomials Q = 3x2 + 5x-2, R=2 - x, and S= 2x+5, perform the indicated operation. Q-[R+ 5] 4.3x+9 4 x2 + 3 *- 9 2x²-3x+9 2x+3x-9

Question

asked Oct 28, 2021 115k views

1 Answer

Polyclef · Answer 1 · 2021-11-01T17:36:38+0000

Answer: 4x^2 + 3x - 9 granted this isnt my work so it might help you, if it doesnt let me know so i dont get someone else an F lol

Explanation:

Q = 3x^2 + 5x - 2

R = 2 - x^2

S = 2x + 5

Q - [R + S]

(3x^2 + 5x - 2) - [(2 - x^2) + (2x + 5)]

(3x^2 + 5x - 2) - [-x^2 + 2x + 7]

3x^2 + 5x - 2 + x^2 - 2x - 7

4x^2 + 3x - 9