Question

2) (4а - 2b) (За +b) – (ба - b) (2а + 2b)​

Answer 1

Ответ:

=12a²+4ab-6ab-2b²-12a²-10ab+2b²=-12ab

Answer 2

First, let's expand the terms using the distributive property:

(4а - 2b) (За +b) = 12а^2 - 2ab + 4ab - 2b^2 = 12а^2 + 2ab - 2b^2

(ба - b) (2а + 2b) = 2аб + 2b^2 - 2аб - 2b^2 = 0

So the expression simplifies to:

(4а - 2b) (За +b) – (ба - b) (2а + 2b) = 12а^2 + 2ab - 2b^2 - 0 = 12а^2 + 2ab - 2b^2

Therefore, the simplified expression is 12а^2 + 2ab - 2b^2.