Question

If x+y=9 and x*y=16 then x^2+y^2=?

Answer 1

Answer:

49 is the answer

Step-by-step explanation:

x+y= 9

(x+y )^2 = 81

x^2 + 2xy + y^2 = 81

x^2 + y^2 + 2  * 16 = 81

x^2 + y^2 =81-32 = 49

so

x^2 + y^ 2 = 49

Answer 2

Answer:

49

Step-by-step explanation:

Checkout the image for solution...

Hope it helps...!!