Please help me!!!!!!!!!!!1
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Answered by
2
Answer:
67
Step-by-step explanation:
x^2 + y^2 = 49 + 2xy = 49+2*9 = 49+18 = 67.
Hope this helps you!
Answered by
0
Answer:
The answer is 67.
Step-by-step explanation:
x^2 + y^2 = (x - y)^2 + 2xy
= (7)^2 + 2×9
= 49 + 18
= 67.
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