15. The number x is 2 more than the number y. If
the sum of the squares of x and y is 34; find
the product of x and y.
Given : x - y = 2 and x2 + y2 = 34
To find the value of xy.
Answers
Answered by
10
Answer:
15
Step-by-step explanation:
(x-y)² = x²+y²- 2xy
(2)² = 34 - 2xy
4 - 34 = -2xy
30 = 2xy
30 / 2 = xy
15 = xy
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