(z+5)(z-5) – InterviewSolution

1.

(z+5)(z-5)

Answer»

the answer is:Z²-25

(z+5)(z-5)=z²-25²=z-25

z²_25=0z=√25z²=5×5z=5

by the formula of(a+b)(a-b)a²-b²iis isZ²-5²

on solving these questions we. get z²-25²

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