Question

(8b-8)(8b+8)-8b(8b+8)при b=2

Answer 1

(8b-8)(8b+8)-8b(8b+8)при b=2

(8b-8)(8b+8)-8b(8b+8) = (8b+8)×(8b-8-8b) = (8b+8)×(-8) = -64b -64

-64b -64 при b=2

(-64*2)-64 = -192

ответ: -192