Question

3x elevado a 2-27x=0
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Answer 1

Resposta:

3x²-27x=0

x(3x-27)=0

x=0 V 3x-27=0

x=0 V 3x= 27

x=0 V x= 9

R: c.s (O;9)

Answer 2

Oie, Td Bom?!

$3x {}^{2} - 27x = 0$

$3x \: . \: (x - 9) = 0$

$x \: . \: (x - 9) = 0$

$x = 0 \\ x - 9 = 0$

$x = 0 \\ x = 9$

S $\left \{ x_{1} = 0 \: , \: x_{2} = 9 \right \}$

Att. Makaveli1996