Question

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

Answer 1

Answer:

116

Step-by-step explanation:

${x}^{2} + y ^{2} \\ =( x + y) ^{2} - 2xy \\ = {12}^{2} - 2 \times 14 \\ = 144 - 28 \\ = 116$