y=(x-1)(4x+2)-4x^2

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Solution for y=(x-1)(4x+2)-4x^2 equation: 


Simplifying
y = (x + -1)(4x + 2) + -4x2

Reorder the terms:
y = (-1 + x)(4x + 2) + -4x2

Reorder the terms:
y = (-1 + x)(2 + 4x) + -4x2

Multiply (-1 + x) * (2 + 4x)
y = (-1(2 + 4x) + x(2 + 4x)) + -4x2
y = ((2 * -1 + 4x * -1) + x(2 + 4x)) + -4x2
y = ((-2 + -4x) + x(2 + 4x)) + -4x2
y = (-2 + -4x + (2 * x + 4x * x)) + -4x2
y = (-2 + -4x + (2x + 4x2)) + -4x2

Combine like terms: -4x + 2x = -2x
y = (-2 + -2x + 4x2) + -4x2

Combine like terms: 4x2 + -4x2 = 0
y = -2 + -2x + 0
y = -2 + -2x

Solving
y = -2 + -2x

Solving for variable 'y'.

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

Simplifying
y = -2 + -2x

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