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Factorize the following: 1)x^2-x-156 2)z^2-32z-105

Answers (1)

1) 

=x2-x-156

=x2-13x+12x-156 

=x(x-13) + 12(x-13)

=(x-13)(x+12)

2)

=z2-32z-105

=z2-35z+ 3z-105

=z(z-35) + 3(z-35)

=(z-35)(z+3)

 

Posted by

Ravindra Pindel

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