16x+x^2=300

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Solution for 16x+x^2=300 equation:


Simplifying
16x + x2 = 300

Solving
16x + x2 = 300

Solving for variable 'x'.

Reorder the terms:
-300 + 16x + x2 = 300 + -300

Combine like terms: 300 + -300 = 0
-300 + 16x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '300' to each side of the equation.
-300 + 16x + 300 + x2 = 0 + 300

Reorder the terms:
-300 + 300 + 16x + x2 = 0 + 300

Combine like terms: -300 + 300 = 0
0 + 16x + x2 = 0 + 300
16x + x2 = 0 + 300

Combine like terms: 0 + 300 = 300
16x + x2 = 300

The x term is 16x.  Take half its coefficient (8).
Square it (64) and add it to both sides.

Add '64' to each side of the equation.
16x + 64 + x2 = 300 + 64

Reorder the terms:
64 + 16x + x2 = 300 + 64

Combine like terms: 300 + 64 = 364
64 + 16x + x2 = 364

Factor a perfect square on the left side:
(x + 8)(x + 8) = 364

Calculate the square root of the right side: 19.078784028

Break this problem into two subproblems by setting 
(x + 8) equal to 19.078784028 and -19.078784028.

Subproblem 1

x + 8 = 19.078784028 Simplifying x + 8 = 19.078784028 Reorder the terms: 8 + x = 19.078784028 Solving 8 + x = 19.078784028 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-8' to each side of the equation. 8 + -8 + x = 19.078784028 + -8 Combine like terms: 8 + -8 = 0 0 + x = 19.078784028 + -8 x = 19.078784028 + -8 Combine like terms: 19.078784028 + -8 = 11.078784028 x = 11.078784028 Simplifying x = 11.078784028

Subproblem 2

x + 8 = -19.078784028 Simplifying x + 8 = -19.078784028 Reorder the terms: 8 + x = -19.078784028 Solving 8 + x = -19.078784028 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-8' to each side of the equation. 8 + -8 + x = -19.078784028 + -8 Combine like terms: 8 + -8 = 0 0 + x = -19.078784028 + -8 x = -19.078784028 + -8 Combine like terms: -19.078784028 + -8 = -27.078784028 x = -27.078784028 Simplifying x = -27.078784028

Solution

The solution to the problem is based on the solutions from the subproblems. x = {11.078784028, -27.078784028}

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