Factorise x 3 + 13x2+32 x 20
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Answer:
Step-by-step explanation:
The value of x^3+13x^2+32x+20 is
x^3+x^2 +12x^2+12x+20x+20
=x^2(x+1)+12x(x+1)+20(x+1)
=(x−1)(x^2+12x+20)
=(x−1)(x^2+10x+2x+20)
=(x+1)[x(x+10)+2(x+10)]
=(x+1)(x+2)(x+10)
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