SOLUTION: Quesion: Solve x^3+2x^2-16x-32=0 (a) 2, 4 (b) -4, 2, 4 (c) -2, 16 (d) -2, -4, 4 Please choose from the above answers- thank you for your help!

SOLUTION: Quesion: Solve x^3+2x^2-16x-32=0 (a) 2, 4 (b) -4, 2, 4 (c) -2, 16 (d) -2, -4, 4 Please choose from the above answers- thank you for your help!

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Question 30240: Quesion: Solve x^3+2x^2-16x-32=0
(a) 2, 4
(b) -4, 2, 4
(c) -2, 16
(d) -2, -4, 4
Please choose from the above answers- thank you for your help!
Answer by mukhopadhyay(490) (Show Source): You can put this solution on YOUR website!
x^3+2x^2-16x-32=0
=> x^2(x+2)-16(x+2)=0
=> (x+2)(x^2-16)=0
=> (x+2)(x-4)(x+4) = 0
=> x= -2 or x= 4 or x = -4
The correct answer is d.
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