Question

Suassuna,Simpson ajudem ai!!!​

Answer 1

Explicação passo-a-passo:

$a)x^2=9\\x=+-\sqrt{9}\\x_1=3\\x_2=-3$

x=3  ou  x=-3

$b)x^2=36\\x=+-\sqrt{36} \\x_1=6\\x_2=-6$

x=6  ou  x=-6

$c)x^2=0,36\\x^2=\frac{36}{100} \\x=+-\sqrt{\frac{36}{100} } \\x_1=\frac{6}{10}=0,6 \\x_2=-\frac{6}{10}=-0,6$

x=0,6  ou  x=-0,6

$d)x^2=\frac{25}{9} \\x=+-\sqrt{\frac{25}{9} } \\x_1=\frac{5}{3} \\\\x_2=-\frac{5}{3}$

$x=\frac{5}{3}$  ou  $x=-\frac{5}{3}$