Question

if X + Y is equals to 8 and x y equals to 15 find the value of x + Y square?​

Answer 1

Step-by-step explanation:

Given

X + Y = 8

XY = 15

To find

X2 + Y2

solution

X+Y = 8

sqaring both sides,

(X+Y)2 = 64

X2 + Y2 + 2XY = 64

X2 + Y2 + 2*15 = 64

X2 + Y2 = 64-30 = 34

Answer 2

Answer: I think u want to say x2+y2

Than

Step-by-step explanation:x+y=8

Xy=15

(x+y)2=x2+y2+2xy

64=x2+y2+30

X2+y2=34