Question

qual o calculo de x^2-25=56 ?

Answer 1

x² - 25 = 56
x² = 56 + 25
x² = 81
x = $\sqrt{81}$
x = ± 9

Bons estudos..(;

Answer 2

x² - 25 = 56
x² = 56 + 25
x² = 81
x = √81
x = +-9