Ifx-y=6 and xy = 16, find x² + y2.
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9
( x - y)² = x² + y² - 2xy
36 = x² + y² - 2 × 16
36 + 32 = x² + y²
68 Answer....
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Answer 68
Answer 68Step-by-step explanation :
Given ,
x-y = 6
xy = 16
x²+y² = ?
(x-y)² = 36
x² + y² -2xy = 36
x²+y²-32 = 36
x²+y² = 68
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