Question

Sabendo que x2+y3=153 e que xy =36 ,calcule o valor de (x+y)2

Answer 1

${x}^{2} + {y}^{2} = 153 \: \: \: \\ xy = 36 \\ \\ {(x + y)}^{2} \\ (x + y)(x + y) \\ {x}^{2} + xy + xy + {y}^{2} \\ ({x}^{2} + {y}^{2} ) + xy + xy \\ 153 + 36 + 36 \\ 225$
Resposta final: 225