y=4(x-7)(x+2)

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Solution for y=4(x-7)(x+2) equation: 


Simplifying
y = 4(x + -7)(x + 2)

Reorder the terms:
y = 4(-7 + x)(x + 2)

Reorder the terms:
y = 4(-7 + x)(2 + x)

Multiply (-7 + x) * (2 + x)
y = 4(-7(2 + x) + x(2 + x))
y = 4((2 * -7 + x * -7) + x(2 + x))
y = 4((-14 + -7x) + x(2 + x))
y = 4(-14 + -7x + (2 * x + x * x))
y = 4(-14 + -7x + (2x + x2))

Combine like terms: -7x + 2x = -5x
y = 4(-14 + -5x + x2)
y = (-14 * 4 + -5x * 4 + x2 * 4)
y = (-56 + -20x + 4x2)

Solving
y = -56 + -20x + 4x2

Solving for variable 'y'.

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

Simplifying
y = -56 + -20x + 4x2

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