Answer to Question #120406 in Algebra for Dgreat

Question

Evaluate 7i(-5+2i)=-14

Answer 1

Given $7i(-5a+2i)=-14$

$\implies -35ai +14i^2 =-14 \\ \implies -35ai -14 =-14 \\ \implies -35ai =0 \\ \implies a =0$