(x+3)(x-1)=

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


Simplifying
(x + 3)(x + -1) = 0

Reorder the terms:
(3 + x)(x + -1) = 0

Reorder the terms:
(3 + x)(-1 + x) = 0

Multiply (3 + x) * (-1 + x)
(3(-1 + x) + x(-1 + x)) = 0
((-1 * 3 + x * 3) + x(-1 + x)) = 0
((-3 + 3x) + x(-1 + x)) = 0
(-3 + 3x + (-1 * x + x * x)) = 0
(-3 + 3x + (-1x + x2)) = 0

Combine like terms: 3x + -1x = 2x
(-3 + 2x + x2) = 0

Solving
-3 + 2x + x2 = 0

Solving for variable 'x'.

Factor a trinomial.
(-3 + -1x)(1 + -1x) = 0

Subproblem 1

Set the factor '(-3 + -1x)' equal to zero and attempt to solve: Simplifying -3 + -1x = 0 Solving -3 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '3' to each side of the equation. -3 + 3 + -1x = 0 + 3 Combine like terms: -3 + 3 = 0 0 + -1x = 0 + 3 -1x = 0 + 3 Combine like terms: 0 + 3 = 3 -1x = 3 Divide each side by '-1'. x = -3 Simplifying x = -3

Subproblem 2

Set the factor '(1 + -1x)' equal to zero and attempt to solve: Simplifying 1 + -1x = 0 Solving 1 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + -1x = 0 + -1 Combine like terms: 1 + -1 = 0 0 + -1x = 0 + -1 -1x = 0 + -1 Combine like terms: 0 + -1 = -1 -1x = -1 Divide each side by '-1'. x = 1 Simplifying x = 1

Solution

x = {-3, 1}

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