Factorise: x3 -13x2 +32x -20
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Answer:
Factorise: x3 -13x2 +32x -20=(x-10) (x-2) (x-1)
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Answer:
Step-by-step explanation:
P(x)=x^3+13x^2+32x+20
P(-1)=(-1)^3+13(-1)^2+32(-1)+20
P(-1) =-1 + 13 -32 + 20=0
=33-33
=0
Therefore x+1is a factor
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