SOLUTION: Solve 4x^3+x^2-36x-9=0 Answers A) 3,(1/4) B) -9,9,-(1/4) C) -3,3,-4 D) -3,3,-(1/4) ps the ^ means to the power of....thanks soo much

SOLUTION: Solve 4x^3+x^2-36x-9=0 Answers A) 3,(1/4) B) -9,9,-(1/4) C) -3,3,-4 D) -3,3,-(1/4) ps the ^ means to the power of....thanks soo much

Algebra.Com

Question 361941: Solve
4x^3+x^2-36x-9=0
Answers
A) 3,(1/4)
B) -9,9,-(1/4)
C) -3,3,-4
D) -3,3,-(1/4)
ps the ^ means to the power of....thanks soo much
Answer by edjones(8007) (Show Source): You can put this solution on YOUR website!
4x^3+x^2-36x-9=0
x^2(4x+1)-9(4x+1)=0 Factoring by grouping.
(x^2-9)(4x+1)=0
(x+3)(x-3)(4x+1)=0
x=3, x=-3, x=-1/4
.
Ed

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