(x)(x+2)=284

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Solution for (x)(x+2)=284 equation:


Simplifying
(x)(x + 2) = 284

Reorder the terms:
x(2 + x) = 284
(2 * x + x * x) = 284
(2x + x2) = 284

Solving
2x + x2 = 284

Solving for variable 'x'.

Reorder the terms:
-284 + 2x + x2 = 284 + -284

Combine like terms: 284 + -284 = 0
-284 + 2x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '284' to each side of the equation.
-284 + 2x + 284 + x2 = 0 + 284

Reorder the terms:
-284 + 284 + 2x + x2 = 0 + 284

Combine like terms: -284 + 284 = 0
0 + 2x + x2 = 0 + 284
2x + x2 = 0 + 284

Combine like terms: 0 + 284 = 284
2x + x2 = 284

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 = 284 + 1

Reorder the terms:
1 + 2x + x2 = 284 + 1

Combine like terms: 284 + 1 = 285
1 + 2x + x2 = 285

Factor a perfect square on the left side:
(x + 1)(x + 1) = 285

Calculate the square root of the right side: 16.881943016

Break this problem into two subproblems by setting 
(x + 1) equal to 16.881943016 and -16.881943016.

Subproblem 1

x + 1 = 16.881943016 Simplifying x + 1 = 16.881943016 Reorder the terms: 1 + x = 16.881943016 Solving 1 + x = 16.881943016 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 = 16.881943016 + -1 Combine like terms: 1 + -1 = 0 0 + x = 16.881943016 + -1 x = 16.881943016 + -1 Combine like terms: 16.881943016 + -1 = 15.881943016 x = 15.881943016 Simplifying x = 15.881943016

Subproblem 2

x + 1 = -16.881943016 Simplifying x + 1 = -16.881943016 Reorder the terms: 1 + x = -16.881943016 Solving 1 + x = -16.881943016 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 = -16.881943016 + -1 Combine like terms: 1 + -1 = 0 0 + x = -16.881943016 + -1 x = -16.881943016 + -1 Combine like terms: -16.881943016 + -1 = -17.881943016 x = -17.881943016 Simplifying x = -17.881943016

Solution

The solution to the problem is based on the solutions from the subproblems. x = {15.881943016, -17.881943016}

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