Question

If x2 + y2 = 9 and xy = 8 , then x + y = ________
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Answer 1

Step-by-step explanation:

x²+y²=9

xy = 8

x²+y²+2xy = 9+16

(x+y)²=25

x+y = 5

Answer 2

Answer:

here is the solution of your question