-10x(x+4)+56=-12-12

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Solution for -10x(x+4)+56=-12-12 equation:


Simplifying
-10x(x + 4) + 56 = -12 + -12

Reorder the terms:
-10x(4 + x) + 56 = -12 + -12
(4 * -10x + x * -10x) + 56 = -12 + -12
(-40x + -10x2) + 56 = -12 + -12

Reorder the terms:
56 + -40x + -10x2 = -12 + -12

Combine like terms: -12 + -12 = -24
56 + -40x + -10x2 = -24

Solving
56 + -40x + -10x2 = -24

Solving for variable 'x'.

Reorder the terms:
56 + 24 + -40x + -10x2 = -24 + 24

Combine like terms: 56 + 24 = 80
80 + -40x + -10x2 = -24 + 24

Combine like terms: -24 + 24 = 0
80 + -40x + -10x2 = 0

Factor out the Greatest Common Factor (GCF), '10'.
10(8 + -4x + -1x2) = 0

Ignore the factor 10.

Subproblem 1

Set the factor '(8 + -4x + -1x2)' equal to zero and attempt to solve: Simplifying 8 + -4x + -1x2 = 0 Solving 8 + -4x + -1x2 = 0 Begin completing the square. Divide all terms by -1 the coefficient of the squared term: Divide each side by '-1'. -8 + 4x + x2 = 0 Move the constant term to the right: Add '8' to each side of the equation. -8 + 4x + 8 + x2 = 0 + 8 Reorder the terms: -8 + 8 + 4x + x2 = 0 + 8 Combine like terms: -8 + 8 = 0 0 + 4x + x2 = 0 + 8 4x + x2 = 0 + 8 Combine like terms: 0 + 8 = 8 4x + x2 = 8 The x term is 4x. Take half its coefficient (2). Square it (4) and add it to both sides. Add '4' to each side of the equation. 4x + 4 + x2 = 8 + 4 Reorder the terms: 4 + 4x + x2 = 8 + 4 Combine like terms: 8 + 4 = 12 4 + 4x + x2 = 12 Factor a perfect square on the left side: (x + 2)(x + 2) = 12 Calculate the square root of the right side: 3.464101615 Break this problem into two subproblems by setting (x + 2) equal to 3.464101615 and -3.464101615.

Subproblem 1

x + 2 = 3.464101615 Simplifying x + 2 = 3.464101615 Reorder the terms: 2 + x = 3.464101615 Solving 2 + x = 3.464101615 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + x = 3.464101615 + -2 Combine like terms: 2 + -2 = 0 0 + x = 3.464101615 + -2 x = 3.464101615 + -2 Combine like terms: 3.464101615 + -2 = 1.464101615 x = 1.464101615 Simplifying x = 1.464101615

Subproblem 2

x + 2 = -3.464101615 Simplifying x + 2 = -3.464101615 Reorder the terms: 2 + x = -3.464101615 Solving 2 + x = -3.464101615 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + x = -3.464101615 + -2 Combine like terms: 2 + -2 = 0 0 + x = -3.464101615 + -2 x = -3.464101615 + -2 Combine like terms: -3.464101615 + -2 = -5.464101615 x = -5.464101615 Simplifying x = -5.464101615

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1.464101615, -5.464101615}

Solution

x = {1.464101615, -5.464101615}

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