(X-3)(X+1)=-4

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Solution for (X-3)(X+1)=-4 equation:


Simplifying
(X + -3)(X + 1) = -4

Reorder the terms:
(-3 + X)(X + 1) = -4

Reorder the terms:
(-3 + X)(1 + X) = -4

Multiply (-3 + X) * (1 + X)
(-3(1 + X) + X(1 + X)) = -4
((1 * -3 + X * -3) + X(1 + X)) = -4
((-3 + -3X) + X(1 + X)) = -4
(-3 + -3X + (1 * X + X * X)) = -4
(-3 + -3X + (1X + X2)) = -4

Combine like terms: -3X + 1X = -2X
(-3 + -2X + X2) = -4

Solving
-3 + -2X + X2 = -4

Solving for variable 'X'.

Reorder the terms:
-3 + 4 + -2X + X2 = -4 + 4

Combine like terms: -3 + 4 = 1
1 + -2X + X2 = -4 + 4

Combine like terms: -4 + 4 = 0
1 + -2X + X2 = 0

Factor a trinomial.
(1 + -1X)(1 + -1X) = 0

Subproblem 1

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

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 = {1, 1}

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