y=3x(x-3)

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Solution for y=3x(x-3) equation: 


Simplifying
y = 3x(x + -3)

Reorder the terms:
y = 3x(-3 + x)
y = (-3 * 3x + x * 3x)
y = (-9x + 3x2)

Solving
y = -9x + 3x2

Solving for variable 'y'.

Move all terms containing y to the left, all other terms to the right.

Simplifying
y = -9x + 3x2

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