Question

faça as equações do 2 grau
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Answer 1

Boa tarde caro(a) estudante!

$e) 2x^2 - 32 = 0\\2x^2 = 0 + 32\\2x^2 = 32\\x^2 = \frac{32}{2}\\x^2 = 16\\x = \sqrt{16} \\x = 4$

$f) -3x^2 + 27 = 0\\-3x^2 = 0 -27\\-3x^2 = -27\\x^2 = \frac{-27}{-3} \\x^2 = 9\\x=\sqrt{9} \\x=3$

$g) 4x^2 - 16 =0\\4x^2=0+16\\4x^2=16\\x^2=\frac{16}{4} \\x^2=4\\x=\sqrt{4} \\x=2$

$h) 5x^2 - 125= 0\\5x^2=0+125\\5x^2=125\\x^2=\frac{125}{5} \\x^2=25\\x=\sqrt{25} \\x=5$

Espero ter ajudado :)