y=5(x+6)(x-3)

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Solution for y=5(x+6)(x-3) equation: 


Simplifying
y = 5(x + 6)(x + -3)

Reorder the terms:
y = 5(6 + x)(x + -3)

Reorder the terms:
y = 5(6 + x)(-3 + x)

Multiply (6 + x) * (-3 + x)
y = 5(6(-3 + x) + x(-3 + x))
y = 5((-3 * 6 + x * 6) + x(-3 + x))
y = 5((-18 + 6x) + x(-3 + x))
y = 5(-18 + 6x + (-3 * x + x * x))
y = 5(-18 + 6x + (-3x + x2))

Combine like terms: 6x + -3x = 3x
y = 5(-18 + 3x + x2)
y = (-18 * 5 + 3x * 5 + x2 * 5)
y = (-90 + 15x + 5x2)

Solving
y = -90 + 15x + 5x2

Solving for variable 'y'.

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

Simplifying
y = -90 + 15x + 5x2

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