x^2+4x-150=0

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Solution for x^2+4x-150=0 equation:


Simplifying
x2 + 4x + -150 = 0

Reorder the terms:
-150 + 4x + x2 = 0

Solving
-150 + 4x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '150' to each side of the equation.
-150 + 4x + 150 + x2 = 0 + 150

Reorder the terms:
-150 + 150 + 4x + x2 = 0 + 150

Combine like terms: -150 + 150 = 0
0 + 4x + x2 = 0 + 150
4x + x2 = 0 + 150

Combine like terms: 0 + 150 = 150
4x + x2 = 150

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 = 150 + 4

Reorder the terms:
4 + 4x + x2 = 150 + 4

Combine like terms: 150 + 4 = 154
4 + 4x + x2 = 154

Factor a perfect square on the left side:
(x + 2)(x + 2) = 154

Calculate the square root of the right side: 12.409673646

Break this problem into two subproblems by setting 
(x + 2) equal to 12.409673646 and -12.409673646.

Subproblem 1

x + 2 = 12.409673646 Simplifying x + 2 = 12.409673646 Reorder the terms: 2 + x = 12.409673646 Solving 2 + x = 12.409673646 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 = 12.409673646 + -2 Combine like terms: 2 + -2 = 0 0 + x = 12.409673646 + -2 x = 12.409673646 + -2 Combine like terms: 12.409673646 + -2 = 10.409673646 x = 10.409673646 Simplifying x = 10.409673646

Subproblem 2

x + 2 = -12.409673646 Simplifying x + 2 = -12.409673646 Reorder the terms: 2 + x = -12.409673646 Solving 2 + x = -12.409673646 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 = -12.409673646 + -2 Combine like terms: 2 + -2 = 0 0 + x = -12.409673646 + -2 x = -12.409673646 + -2 Combine like terms: -12.409673646 + -2 = -14.409673646 x = -14.409673646 Simplifying x = -14.409673646

Solution

The solution to the problem is based on the solutions from the subproblems. x = {10.409673646, -14.409673646}

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