(x+4)(x-6)=432

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Solution for (x+4)(x-6)=432 equation:


Simplifying
(x + 4)(x + -6) = 432

Reorder the terms:
(4 + x)(x + -6) = 432

Reorder the terms:
(4 + x)(-6 + x) = 432

Multiply (4 + x) * (-6 + x)
(4(-6 + x) + x(-6 + x)) = 432
((-6 * 4 + x * 4) + x(-6 + x)) = 432
((-24 + 4x) + x(-6 + x)) = 432
(-24 + 4x + (-6 * x + x * x)) = 432
(-24 + 4x + (-6x + x2)) = 432

Combine like terms: 4x + -6x = -2x
(-24 + -2x + x2) = 432

Solving
-24 + -2x + x2 = 432

Solving for variable 'x'.

Reorder the terms:
-24 + -432 + -2x + x2 = 432 + -432

Combine like terms: -24 + -432 = -456
-456 + -2x + x2 = 432 + -432

Combine like terms: 432 + -432 = 0
-456 + -2x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '456' to each side of the equation.
-456 + -2x + 456 + x2 = 0 + 456

Reorder the terms:
-456 + 456 + -2x + x2 = 0 + 456

Combine like terms: -456 + 456 = 0
0 + -2x + x2 = 0 + 456
-2x + x2 = 0 + 456

Combine like terms: 0 + 456 = 456
-2x + x2 = 456

The x term is -2x.  Take half its coefficient (-1).
Square it (1) and add it to both sides.

Add '1' to each side of the equation.
-2x + 1 + x2 = 456 + 1

Reorder the terms:
1 + -2x + x2 = 456 + 1

Combine like terms: 456 + 1 = 457
1 + -2x + x2 = 457

Factor a perfect square on the left side:
(x + -1)(x + -1) = 457

Calculate the square root of the right side: 21.377558326

Break this problem into two subproblems by setting 
(x + -1) equal to 21.377558326 and -21.377558326.

Subproblem 1

x + -1 = 21.377558326 Simplifying x + -1 = 21.377558326 Reorder the terms: -1 + x = 21.377558326 Solving -1 + x = 21.377558326 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1' to each side of the equation. -1 + 1 + x = 21.377558326 + 1 Combine like terms: -1 + 1 = 0 0 + x = 21.377558326 + 1 x = 21.377558326 + 1 Combine like terms: 21.377558326 + 1 = 22.377558326 x = 22.377558326 Simplifying x = 22.377558326

Subproblem 2

x + -1 = -21.377558326 Simplifying x + -1 = -21.377558326 Reorder the terms: -1 + x = -21.377558326 Solving -1 + x = -21.377558326 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1' to each side of the equation. -1 + 1 + x = -21.377558326 + 1 Combine like terms: -1 + 1 = 0 0 + x = -21.377558326 + 1 x = -21.377558326 + 1 Combine like terms: -21.377558326 + 1 = -20.377558326 x = -20.377558326 Simplifying x = -20.377558326

Solution

The solution to the problem is based on the solutions from the subproblems. x = {22.377558326, -20.377558326}

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