Question

14 If x + y = 12 and xy = 14, find the value of (x2 + y²).​

Answer 1

Answer:

116

Step-by-step explanation:

x+y=12

Squaring both sides,

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

or,x^2+2×14+y^2=144

or,x^2+y^2=116