Question

REDUCIR

R = (a + b)2 – (b - a)2 + (a - 2b)2 - a2- 4b2​

Answer 1

Respuesta:

Explicación paso a paso:

(a + b)2 – (b - a)2 + (a - 2b)2 - a2- 4b2​

=(a)(2)+(b)(2)+2a+−2b+(a)(2)+(−2b)(2)+−a²+−4b²

=2a+2b+2a+−2b+2a+−4b+−a²+−4b²

=(−a²)+(−4b²)+(2a+2a+2a)+(2b+−2b+−4b)

=−a²+−4b²+6a+−4b