y=-3x(x+7)

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Solution for y=-3x(x+7) equation: 


Simplifying
y = -3x(x + 7)

Reorder the terms:
y = -3x(7 + x)
y = (7 * -3x + x * -3x)
y = (-21x + -3x2)

Solving
y = -21x + -3x2

Solving for variable 'y'.

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

Simplifying
y = -21x + -3x2

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