Question

solve x and y
5x+2y=9 and 4x-y=2
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Answer 1

Answer:

x + y = 5

x² + y² = 15

( x + y )² = x² + y² + 2xy

5² = 15 + 2xy

25 - 15 = 2xy

20 = 2xy

The value of xy = 10

Step-by-step explanation:

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Answer 2

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