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

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


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

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

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

Multiply (-2 + x) * (1 + 4x)
y = (-2(1 + 4x) + x(1 + 4x))
y = ((1 * -2 + 4x * -2) + x(1 + 4x))
y = ((-2 + -8x) + x(1 + 4x))
y = (-2 + -8x + (1 * x + 4x * x))
y = (-2 + -8x + (1x + 4x2))

Combine like terms: -8x + 1x = -7x
y = (-2 + -7x + 4x2)

Solving
y = -2 + -7x + 4x2

Solving for variable 'y'.

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

Simplifying
y = -2 + -7x + 4x2

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