-4=x^2-3x-4

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Solution for -4=x^2-3x-4 equation:


Simplifying
-4 = x2 + -3x + -4

Reorder the terms:
-4 = -4 + -3x + x2

Add '4' to each side of the equation.
-4 + 4 = -4 + -3x + 4 + x2

Combine like terms: -4 + 4 = 0
0 = -4 + -3x + 4 + x2

Reorder the terms:
0 = -4 + 4 + -3x + x2

Combine like terms: -4 + 4 = 0
0 = 0 + -3x + x2
0 = -3x + x2

Solving
0 = -3x + x2

Solving for variable 'x'.
Remove the zero:
3x + -1x2 = -3x + x2 + 3x + -1x2

Reorder the terms:
3x + -1x2 = -3x + 3x + x2 + -1x2

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

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

Factor out the Greatest Common Factor (GCF), 'x'.
x(3 + -1x) = 0

Subproblem 1

Set the factor 'x' equal to zero and attempt to solve: Simplifying x = 0 Solving x = 0 Move all terms containing x to the left, all other terms to the right. Simplifying x = 0

Subproblem 2

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

Solution

x = {0, 3}

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