Question

6. If x + y = 7 and xy = 3, find the value of x
${x}^{2} + {y}^{2}$
​

Answer 1

Step-by-step explanation:

(x+y)^2=x^2 + y^2+ 2xy

49= x^2+ y^2 +6

x^2 + y^2 = 43