y=0.25(x-5)(x-1)

Solution for y=0.25(x-5)(x-1) equation:

Simplifying
y = 0.25(x + -5)(x + -1)

Reorder the terms:
y = 0.25(-5 + x)(x + -1)

Reorder the terms:
y = 0.25(-5 + x)(-1 + x)

Multiply (-5 + x) * (-1 + x)
y = 0.25(-5(-1 + x) + x(-1 + x))
y = 0.25((-1 * -5 + x * -5) + x(-1 + x))
y = 0.25((5 + -5x) + x(-1 + x))
y = 0.25(5 + -5x + (-1 * x + x * x))
y = 0.25(5 + -5x + (-1x + x2))

Combine like terms: -5x + -1x = -6x
y = 0.25(5 + -6x + x2)
y = (5 * 0.25 + -6x * 0.25 + x2 * 0.25)
y = (1.25 + -1.5x + 0.25x2)

Solving
y = 1.25 + -1.5x + 0.25x2

Solving for variable 'y'.

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

Simplifying
y = 1.25 + -1.5x + 0.25x2