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Answer :

Knightofgaming234598go

Answer:

7x=1 (or x=1/7)

Step-by-step explanation:

First, simplify to get

7x3 -x2   = 0

Factor to get this x2 * (7× - 1) = 0

x2 = 0, then x = 0

Gwenspooner85go

Answer:

0 and 1/7

Step-by-step explanation:

One obvious answer would be 0. And another:

[tex]21x^3 - 3x^2 = 0 \\21x^3 = 3x^2\\7x = 1\\x = \frac{1}{7}[/tex]

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