9. Which of the following is the same as Ox) = (x + 2)(x - 1)(x+3)?
A x) = x³ - 4x² +x+6
B f(x) = x³- 4x²-x+6
c. f(x) = x³+4x² - x - 6
D(x) = x³ +4x²+x-6
A x) = x³ - 4x² +x+6
B f(x) = x³- 4x²-x+6
c. f(x) = x³+4x² - x - 6
D(x) = x³ +4x²+x-6
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Answer:
d
Step-by-step explanation:
(x+2) (x-1) (x+3)
(x+2) (x-1) = x^2 -x +2x -2 = x^2 +x -2
(x^2+x-2) (x+3) = x^3 +3x^2 +x^2 +3x -2x -6
=x^3+4x^2+x-6
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