Question

if x+y=12 and xy=32 find the value of x2+ y2​

Answer 1

Step-by-step explanation:

given x+y=12

square on both sides

we get x^2+y^2+2xy=144

x^2+y^2+2(32)=144

x2+y2=144-2(32)

x2+y2=80