Question

Se x + y =16 e xy= 63
Qual o valor de x²+ 8xy + y²?​

Answer 1

Resposta

634

Explicação passo-a-passo:

x+y=16

xy=x×y=63

x ou y=9 e 7

9+7/7+9=16

9×7/7×9=63

x²+8xy+y²

9²/7²+8×9×7/8×7×9+7²/9²

81/49+72×7/56×9+49/81

81/49+504/504+49/81

81+504+49 | 49+504+81

585+49 | 553+81

634/634

634