a=(x-1)(x^2-x+3)

Solution for a=(x-1)(x^2-x+3) equation:

Simplifying
a = (x + -1)(x2 + -1x + 3)

Reorder the terms:
a = (-1 + x)(x2 + -1x + 3)

Reorder the terms:
a = (-1 + x)(3 + -1x + x2)

Multiply (-1 + x) * (3 + -1x + x2)
a = (-1(3 + -1x + x2) + x(3 + -1x + x2))
a = ((3 * -1 + -1x * -1 + x2 * -1) + x(3 + -1x + x2))
a = ((-3 + 1x + -1x2) + x(3 + -1x + x2))
a = (-3 + 1x + -1x2 + (3 * x + -1x * x + x2 * x))
a = (-3 + 1x + -1x2 + (3x + -1x2 + x3))

Reorder the terms:
a = (-3 + 1x + 3x + -1x2 + -1x2 + x3)

Combine like terms: 1x + 3x = 4x
a = (-3 + 4x + -1x2 + -1x2 + x3)

Combine like terms: -1x2 + -1x2 = -2x2
a = (-3 + 4x + -2x2 + x3)

Solving
a = -3 + 4x + -2x2 + x3

Solving for variable 'a'.

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

Simplifying
a = -3 + 4x + -2x2 + x3