SOLUTION: factorise X^3 +2X^2-13X+10=0

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Question 1025145: factorise
X^3 +2X^2-13X+10=0
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
factorise
X^3 +2X^2-13X+10=0
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Try the factors of 10 to find a zero.
1, 2, 5 & 10.
Plus and minus.
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f(x) = x^3 + 2x^2 - 13x + 10
f(1) = 1 + 2 - 13 + 10 = 0
--> (x-1) is a factor.
Divide by (x-1), then it's a quadratic.