Question

x(x-9)=-3x me ajudem pfv

Answer 1

$x(x-9)=-3x \\ \\ x^2-9x+3x=0 \\ \\ x^{2} -6x=0 \\ \\ incompleta \\ \\ x(x-6)=0 \\ x-6=0~~~~~~x=0 \\ x=6 \\ \\ S=\{0,6\}$

Answer 2

x(x - 9) = - 3x
x² - 9x = - 3x
x² - 9x + 3x = 0
x² - 6x = 0
x(x - 6) = 0

x' = 0

x - 6 = 0
x = 6

Resposta: s{0 e 6}