Question

find x+y if xsquare_ y square=20 and xy=8

Answer 1

Answer:

6

Step-by-step explanation:

Given:-

$x^{2}$+ $y^{2}$ = 20

xy=8

Sol:-

(x+y)²= $x^{2}$ + $y^{2}$+ 2xy

(x+y)²= (x² + y²)  + 2xy

(x+y)²= 20 + 2*8

(x+y)²= 36

x+y = √36

     = 6

Answer 2

Answer:

Hope this helps

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