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

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


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

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

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

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

Combine like terms: -1x + -1x = -2x
y = 2(1 + -2x + x2) + -4
y = (1 * 2 + -2x * 2 + x2 * 2) + -4
y = (2 + -4x + 2x2) + -4

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

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

Solving
y = -2 + -4x + 2x2

Solving for variable 'y'.

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

Simplifying
y = -2 + -4x + 2x2

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