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X^3+13x^2+32x+20 please help me factorizing above equation
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3 votes
X^3+13x^2+32x+20
please help me factorizing above equation

User Comixninja
by
8.8k points

1 Answer

4 votes

x^3+13x^2+32x+20=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)


User Shankia
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