(4x-10)(3x+10)=180

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Solution for (4x-10)(3x+10)=180 equation:


Simplifying
(4x + -10)(3x + 10) = 180

Reorder the terms:
(-10 + 4x)(3x + 10) = 180

Reorder the terms:
(-10 + 4x)(10 + 3x) = 180

Multiply (-10 + 4x) * (10 + 3x)
(-10(10 + 3x) + 4x * (10 + 3x)) = 180
((10 * -10 + 3x * -10) + 4x * (10 + 3x)) = 180
((-100 + -30x) + 4x * (10 + 3x)) = 180
(-100 + -30x + (10 * 4x + 3x * 4x)) = 180
(-100 + -30x + (40x + 12x2)) = 180

Combine like terms: -30x + 40x = 10x
(-100 + 10x + 12x2) = 180

Solving
-100 + 10x + 12x2 = 180

Solving for variable 'x'.

Reorder the terms:
-100 + -180 + 10x + 12x2 = 180 + -180

Combine like terms: -100 + -180 = -280
-280 + 10x + 12x2 = 180 + -180

Combine like terms: 180 + -180 = 0
-280 + 10x + 12x2 = 0

Factor out the Greatest Common Factor (GCF), '2'.
2(-140 + 5x + 6x2) = 0

Ignore the factor 2.

Subproblem 1

Set the factor '(-140 + 5x + 6x2)' equal to zero and attempt to solve: Simplifying -140 + 5x + 6x2 = 0 Solving -140 + 5x + 6x2 = 0 Begin completing the square. Divide all terms by 6 the coefficient of the squared term: Divide each side by '6'. -23.33333333 + 0.8333333333x + x2 = 0 Move the constant term to the right: Add '23.33333333' to each side of the equation. -23.33333333 + 0.8333333333x + 23.33333333 + x2 = 0 + 23.33333333 Reorder the terms: -23.33333333 + 23.33333333 + 0.8333333333x + x2 = 0 + 23.33333333 Combine like terms: -23.33333333 + 23.33333333 = 0.00000000 0.00000000 + 0.8333333333x + x2 = 0 + 23.33333333 0.8333333333x + x2 = 0 + 23.33333333 Combine like terms: 0 + 23.33333333 = 23.33333333 0.8333333333x + x2 = 23.33333333 The x term is 0.8333333333x. Take half its coefficient (0.4166666667). Square it (0.1736111111) and add it to both sides. Add '0.1736111111' to each side of the equation. 0.8333333333x + 0.1736111111 + x2 = 23.33333333 + 0.1736111111 Reorder the terms: 0.1736111111 + 0.8333333333x + x2 = 23.33333333 + 0.1736111111 Combine like terms: 23.33333333 + 0.1736111111 = 23.5069444411 0.1736111111 + 0.8333333333x + x2 = 23.5069444411 Factor a perfect square on the left side: (x + 0.4166666667)(x + 0.4166666667) = 23.5069444411 Calculate the square root of the right side: 4.848396069 Break this problem into two subproblems by setting (x + 0.4166666667) equal to 4.848396069 and -4.848396069.

Subproblem 1

x + 0.4166666667 = 4.848396069 Simplifying x + 0.4166666667 = 4.848396069 Reorder the terms: 0.4166666667 + x = 4.848396069 Solving 0.4166666667 + x = 4.848396069 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.4166666667' to each side of the equation. 0.4166666667 + -0.4166666667 + x = 4.848396069 + -0.4166666667 Combine like terms: 0.4166666667 + -0.4166666667 = 0.0000000000 0.0000000000 + x = 4.848396069 + -0.4166666667 x = 4.848396069 + -0.4166666667 Combine like terms: 4.848396069 + -0.4166666667 = 4.4317294023 x = 4.4317294023 Simplifying x = 4.4317294023

Subproblem 2

x + 0.4166666667 = -4.848396069 Simplifying x + 0.4166666667 = -4.848396069 Reorder the terms: 0.4166666667 + x = -4.848396069 Solving 0.4166666667 + x = -4.848396069 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.4166666667' to each side of the equation. 0.4166666667 + -0.4166666667 + x = -4.848396069 + -0.4166666667 Combine like terms: 0.4166666667 + -0.4166666667 = 0.0000000000 0.0000000000 + x = -4.848396069 + -0.4166666667 x = -4.848396069 + -0.4166666667 Combine like terms: -4.848396069 + -0.4166666667 = -5.2650627357 x = -5.2650627357 Simplifying x = -5.2650627357

Solution

The solution to the problem is based on the solutions from the subproblems. x = {4.4317294023, -5.2650627357}

Solution

x = {4.4317294023, -5.2650627357}

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