Question

Sendo a² + b² = 12 E a.b = 5, CALCULE o valor de (a + b)²​

Answer 1

$\boxed{\begin{array}{l}\underline{\rm Quadrado\,da\,soma\,de\,2\,termos}\\\huge\boxed{\boxed{\boxed{\boxed{\rm (a+b)^2=a^2+2ab+b^2}}}}\\\sf a^2+b^2=12~~a\cdot b=5\\\sf (a+b)^2=a^2+2ab+b^2\\\sf (a+b)^2=a^2+b^2+2ab\\\sf (a+b)^2=12+2\cdot5\\\sf (a+b)^2=12+10\\\sf (a+b)^2=32\end{array}}$