y=(x+1)(x+1)(x-3)

Solution for y=(x+1)(x+1)(x-3) equation:

Simplifying
y = (x + 1)(x + 1)(x + -3)

Reorder the terms:
y = (1 + x)(x + 1)(x + -3)

Reorder the terms:
y = (1 + x)(1 + x)(x + -3)

Reorder the terms:
y = (1 + x)(1 + x)(-3 + x)

Multiply (1 + x) * (1 + x)
y = (1(1 + x) + x(1 + x))(-3 + x)
y = ((1 * 1 + x * 1) + x(1 + x))(-3 + x)
y = ((1 + 1x) + x(1 + x))(-3 + x)
y = (1 + 1x + (1 * x + x * x))(-3 + x)
y = (1 + 1x + (1x + x2))(-3 + x)

Combine like terms: 1x + 1x = 2x
y = (1 + 2x + x2)(-3 + x)

Multiply (1 + 2x + x2) * (-3 + x)
y = (1(-3 + x) + 2x * (-3 + x) + x2(-3 + x))
y = ((-3 * 1 + x * 1) + 2x * (-3 + x) + x2(-3 + x))
y = ((-3 + 1x) + 2x * (-3 + x) + x2(-3 + x))
y = (-3 + 1x + (-3 * 2x + x * 2x) + x2(-3 + x))
y = (-3 + 1x + (-6x + 2x2) + x2(-3 + x))
y = (-3 + 1x + -6x + 2x2 + (-3 * x2 + x * x2))
y = (-3 + 1x + -6x + 2x2 + (-3x2 + x3))

Combine like terms: 1x + -6x = -5x
y = (-3 + -5x + 2x2 + -3x2 + x3)

Combine like terms: 2x2 + -3x2 = -1x2
y = (-3 + -5x + -1x2 + x3)

Solving
y = -3 + -5x + -1x2 + x3

Solving for variable 'y'.

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

Simplifying
y = -3 + -5x + -1x2 + x3