Q17 of 137 Page 102

Factorize:

x2 + 5x – 104

x2 + 5x – 104


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


Sum = 5 and


Product = - 104


The numbers are 13 and 8,


So,


x2 + 5x – 104 = x2 + 13x – 8x – 104


= x(x + 13) – 8(x + 13)


= (x + 13)(x – 8)


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x2 + x – 132

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