(x+17)(x+9)=-3

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Solution for (x+17)(x+9)=-3 equation:


Simplifying
(x + 17)(x + 9) = -3

Reorder the terms:
(17 + x)(x + 9) = -3

Reorder the terms:
(17 + x)(9 + x) = -3

Multiply (17 + x) * (9 + x)
(17(9 + x) + x(9 + x)) = -3
((9 * 17 + x * 17) + x(9 + x)) = -3
((153 + 17x) + x(9 + x)) = -3
(153 + 17x + (9 * x + x * x)) = -3
(153 + 17x + (9x + x2)) = -3

Combine like terms: 17x + 9x = 26x
(153 + 26x + x2) = -3

Solving
153 + 26x + x2 = -3

Solving for variable 'x'.

Reorder the terms:
153 + 3 + 26x + x2 = -3 + 3

Combine like terms: 153 + 3 = 156
156 + 26x + x2 = -3 + 3

Combine like terms: -3 + 3 = 0
156 + 26x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '-156' to each side of the equation.
156 + 26x + -156 + x2 = 0 + -156

Reorder the terms:
156 + -156 + 26x + x2 = 0 + -156

Combine like terms: 156 + -156 = 0
0 + 26x + x2 = 0 + -156
26x + x2 = 0 + -156

Combine like terms: 0 + -156 = -156
26x + x2 = -156

The x term is 26x.  Take half its coefficient (13).
Square it (169) and add it to both sides.

Add '169' to each side of the equation.
26x + 169 + x2 = -156 + 169

Reorder the terms:
169 + 26x + x2 = -156 + 169

Combine like terms: -156 + 169 = 13
169 + 26x + x2 = 13

Factor a perfect square on the left side:
(x + 13)(x + 13) = 13

Calculate the square root of the right side: 3.605551275

Break this problem into two subproblems by setting 
(x + 13) equal to 3.605551275 and -3.605551275.

Subproblem 1

x + 13 = 3.605551275 Simplifying x + 13 = 3.605551275 Reorder the terms: 13 + x = 3.605551275 Solving 13 + x = 3.605551275 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-13' to each side of the equation. 13 + -13 + x = 3.605551275 + -13 Combine like terms: 13 + -13 = 0 0 + x = 3.605551275 + -13 x = 3.605551275 + -13 Combine like terms: 3.605551275 + -13 = -9.394448725 x = -9.394448725 Simplifying x = -9.394448725

Subproblem 2

x + 13 = -3.605551275 Simplifying x + 13 = -3.605551275 Reorder the terms: 13 + x = -3.605551275 Solving 13 + x = -3.605551275 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-13' to each side of the equation. 13 + -13 + x = -3.605551275 + -13 Combine like terms: 13 + -13 = 0 0 + x = -3.605551275 + -13 x = -3.605551275 + -13 Combine like terms: -3.605551275 + -13 = -16.605551275 x = -16.605551275 Simplifying x = -16.605551275

Solution

The solution to the problem is based on the solutions from the subproblems. x = {-9.394448725, -16.605551275}

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