Q16 of 137 Page 102

Factorize:

x2 + x – 132

x2 + x – 132


Now, first we have to find out the numbers whose-


Sum = 1 and


Product = - 132


The numbers are 12 and 11,


So,


x2 + x – 132 = x2 + 12x – 11x – 132


= x(x + 12) – 11(x + 12)


= (x + 12)(x – 11)


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