35.) If x+y=12 and xy=32 find the
value of x²+y²?
Answers
Answered by
2
Answer:
x+y = 12
(x+y)² = 12²
x²+y²+2xy = 144
x²+y²+2*32 = 144
x²+y² = 144 - 64
x²+y² = 80
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Answered by
0
Answer:
(x+y)²=x²+y²+2xy
12²=x²+y²+2×32
144=x²+y²+64
144-64=x²+y²
x²+y²=80
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