Question

Stiind ca a=8 si b+c-d=27, calculati ab+ac-ad

Answer 1

$\boxed{ab+ac-ad=a(b+c-d)=8 \cdot 27=216}$

Answer 2

a=8 b+c-d= 27 ab+ac-ad= a ( b+c-d) = 8*27 = 216