8a-11b и 10a+2b при a=2 b=-5

Question

8a-11b и 10a+2b при a=2 b=-5

Answer 1

(8×2)-(11×(-5))=16+55=71
(10×2)+(2×(-5))= 20-10=10

Answer 2

1. 8×2-11×(-5)=16-(-55)=16+55=71
2.10×2+2(-5)=20+(-10)=10