Q. 194.7( 12 Votes )

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Answer :

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)


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