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love history [14]
3 years ago
6

If x^2+y^2=73 and xy=24, what is the value of (x+y)^2? And Why?

Mathematics
1 answer:
nydimaria [60]3 years ago
7 0
(x+y)^2=x^2+y^2+2xy=73+2*24=73+48=121

⇒ (x+y)^2=121
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