y=(x+3)(x-3)(x-4)

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Solution for y=(x+3)(x-3)(x-4) equation: 


Simplifying
y = (x + 3)(x + -3)(x + -4)

Reorder the terms:
y = (3 + x)(x + -3)(x + -4)

Reorder the terms:
y = (3 + x)(-3 + x)(x + -4)

Reorder the terms:
y = (3 + x)(-3 + x)(-4 + x)

Multiply (3 + x) * (-3 + x)
y = (3(-3 + x) + x(-3 + x))(-4 + x)
y = ((-3 * 3 + x * 3) + x(-3 + x))(-4 + x)
y = ((-9 + 3x) + x(-3 + x))(-4 + x)
y = (-9 + 3x + (-3 * x + x * x))(-4 + x)
y = (-9 + 3x + (-3x + x2))(-4 + x)

Combine like terms: 3x + -3x = 0
y = (-9 + 0 + x2)(-4 + x)
y = (-9 + x2)(-4 + x)

Multiply (-9 + x2) * (-4 + x)
y = (-9(-4 + x) + x2(-4 + x))
y = ((-4 * -9 + x * -9) + x2(-4 + x))
y = ((36 + -9x) + x2(-4 + x))
y = (36 + -9x + (-4 * x2 + x * x2))
y = (36 + -9x + (-4x2 + x3))
y = (36 + -9x + -4x2 + x3)

Solving
y = 36 + -9x + -4x2 + x3

Solving for variable 'y'.

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

Simplifying
y = 36 + -9x + -4x2 + x3

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