Question

$- 2x ^{2} + 26x = 0$
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Answer 1

Olá!

- 2x² + 26x = 0 (÷ 2)

- x² + 13x = 0 · (- 1)

x² - 13x = 0

x · (x - 13) = 0

x = 0

x - 13 = 0

x = 0 + 13

x = 13

S = {0, 13} ✅

Espero ter ajudado! :)