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1 vote
X=-5 and Y=-6 (x+3y) squared.

User Nikhil V M
by
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1 Answer

1 vote
(x+3y)^2
((-5)+3(-6))^2
(-5+3·6)^2
(-5+18)^2
(-5+18)(-5+18)
25-90-90+324
169 is your answer.
User Tmw
by
7.6k points