Answer:
-12
Step-by-step explanation:
since they are both negative you add
(x + 2y) ^2
(x + 2y) (x + 2y)
x^2 + 2xy + 2xy + 4y^2
= x^2 + 4xy + 4y^2
Answer:
A
Step-by-step explanation:
Multiply them according to the problem.

As you can see, the only terms in the two equations that can cancel out are
and
.
Answer:
29622 m^2
Step-by-step explanation:
SA = 2 ( lw+ wh+ lh) where l = length w = width h = height
SA = 2 ( 81*75+ 75* 56+ 81*56)
= 2 (6075+4200+4536)
= 2(14811)
29622