Math, asked by am0761900gmailcom, 6 months ago

IF X^2 + y^2 =9 and xy=8 then x+y is equal to

Answers

Answered by kaneki7

2

Answer:

(x+y)sq-2xy=9 ((x+y)sq -2xy=x sq +y sq)

(x+y)sq-16=9

(x+y)sq=25

(x+y)= +-5

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