y=(4x+1)(x-5)

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Solution for y=(4x+1)(x-5) equation: 


Simplifying
y = (4x + 1)(x + -5)

Reorder the terms:
y = (1 + 4x)(x + -5)

Reorder the terms:
y = (1 + 4x)(-5 + x)

Multiply (1 + 4x) * (-5 + x)
y = (1(-5 + x) + 4x * (-5 + x))
y = ((-5 * 1 + x * 1) + 4x * (-5 + x))
y = ((-5 + 1x) + 4x * (-5 + x))
y = (-5 + 1x + (-5 * 4x + x * 4x))
y = (-5 + 1x + (-20x + 4x2))

Combine like terms: 1x + -20x = -19x
y = (-5 + -19x + 4x2)

Solving
y = -5 + -19x + 4x2

Solving for variable 'y'.

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

Simplifying
y = -5 + -19x + 4x2

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