Answers

2016-02-08T19:20:34+05:30
15 and 8
15×8 =120
15×15=225
8×8=64
225+64=289
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2016-02-08T19:20:55+05:30
Xy=120
x²+y²=289
x²+y²+2xy=(x+y)²
289+2(120)=(x+y)²
(x+y)²=289+240
(x+y)²=529
x+y=√529
x+y=23

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