Z=(-5i+7) (-3i-2) what will be a an b?​

Answers 1

Step-by-step explanation:

z = x-iy

(x-iy) = (-5i+7)(-3i-2)

= 15i^2+10i-21i-14

= -15-10+21-14

= -39+21

= -18

Note:- i^2 = -1

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