Question

If x2 + y2 =9 and xy = 8, find x+y

Answer 1

Answer:5

Step-by-step explanation:

Answer 2

Answer:

5

Step-by-step explanation:

(x+y)^2=x^2+y^2+2xy

x^2+y^2=9

xy=8.......................

2xy=8 X 2=16

(x+y)^2=9+16=25

x+y=√25=5