You can put this solution on YOUR website! x(x-3)=x
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Divide by x
x-3 = 1
x = 4
That's one answer, but it overlooks another possibility, that x = 0.
To get both:
x^2-3x = x
x^2 -4x = 0
x(x-4) = 0
Now it's more obvious that x = 0 and x = 4.
