Q19 of 137 Page 102

Factorize:

z2 + 19z – 150

Given,


z2 + 19z – 150


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


Sum = 19 and


Product = - 150


The numbers are 25 and 6,


So,


z2 + 19z – 150


= z2 + 25z – 6z – 150


= z(z + 25) – 6(z + 25)


= (z + 25)(z – 6)


More from this chapter

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17

Factorize:

x2 + 5x – 104

 18

Factorize:

y2 + 7y – 144

 20

Factorize:

y2 + y – 72

 21

Factorize:

a2 + 6a – 91