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37 votes
37 votes
If x²+y²=106 and xy=24, find the value of 2(x+y)²

User GwenM
by
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1 Answer

23 votes
23 votes

(×+y)^2 = x^2 + y^2+ 2xy

= 106+ 2×24

=106+48

=154

2×154 = 308

User Nacross
by
3.0k points
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