Question

A+b =12 and ab= 14 thena^2+ b^2

Answer 1

Hey mate

here is your answer

${(a + b)}^{2} = {a}^{2} + 2ab + {b}^{2} \\ {12}^{2} = {a}^{2} + {b}^{2} + 28 \\ 144 - 28 = {a}^{2} + {b}^{2} \\ 116 = {a}^{2} + {b}^{2}$

hope it helps you....