Question

D) X²+2xy para X= -2 e Y =1 Com as contas pfvr gente.....

Answer 1

D) X²+2xy para X= -2 e Y =1 Com as contas pfvr gente.....

x² + 2xy =
(-2)² + 2(-2)(1)
+ 4  + 2(-2)
+ 4 - 4 = 0

Answer 2

( - 2)² + 2 • ( - 2) • 1

4 - 4 • 1

4 - 4

0