y=2x(2x)-4

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


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

Remove parenthesis around (2x)
y = 2x * 2x + -4

Reorder the terms for easier multiplication:
y = 2 * 2x * x + -4

Multiply 2 * 2
y = 4x * x + -4

Multiply x * x
y = 4x2 + -4

Reorder the terms:
y = -4 + 4x2

Solving
y = -4 + 4x2

Solving for variable 'y'.

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

Simplifying
y = -4 + 4x2

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