y=0.2(x-2)(x+1)(x-5)

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Solution for y=0.2(x-2)(x+1)(x-5) equation: 


Simplifying
y = 0.2(x + -2)(x + 1)(x + -5)

Reorder the terms:
y = 0.2(-2 + x)(x + 1)(x + -5)

Reorder the terms:
y = 0.2(-2 + x)(1 + x)(x + -5)

Reorder the terms:
y = 0.2(-2 + x)(1 + x)(-5 + x)

Multiply (-2 + x) * (1 + x)
y = 0.2(-2(1 + x) + x(1 + x))(-5 + x)
y = 0.2((1 * -2 + x * -2) + x(1 + x))(-5 + x)
y = 0.2((-2 + -2x) + x(1 + x))(-5 + x)
y = 0.2(-2 + -2x + (1 * x + x * x))(-5 + x)
y = 0.2(-2 + -2x + (1x + x2))(-5 + x)

Combine like terms: -2x + 1x = -1x
y = 0.2(-2 + -1x + x2)(-5 + x)

Multiply (-2 + -1x + x2) * (-5 + x)
y = 0.2(-2(-5 + x) + -1x * (-5 + x) + x2(-5 + x))
y = 0.2((-5 * -2 + x * -2) + -1x * (-5 + x) + x2(-5 + x))
y = 0.2((10 + -2x) + -1x * (-5 + x) + x2(-5 + x))
y = 0.2(10 + -2x + (-5 * -1x + x * -1x) + x2(-5 + x))
y = 0.2(10 + -2x + (5x + -1x2) + x2(-5 + x))
y = 0.2(10 + -2x + 5x + -1x2 + (-5 * x2 + x * x2))
y = 0.2(10 + -2x + 5x + -1x2 + (-5x2 + x3))

Combine like terms: -2x + 5x = 3x
y = 0.2(10 + 3x + -1x2 + -5x2 + x3)

Combine like terms: -1x2 + -5x2 = -6x2
y = 0.2(10 + 3x + -6x2 + x3)
y = (10 * 0.2 + 3x * 0.2 + -6x2 * 0.2 + x3 * 0.2)
y = (2 + 0.6x + -1.2x2 + 0.2x3)

Solving
y = 2 + 0.6x + -1.2x2 + 0.2x3

Solving for variable 'y'.

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

Simplifying
y = 2 + 0.6x + -1.2x2 + 0.2x3

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