x^2+.76x=1.44

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Solution for x^2+.76x=1.44 equation:


Simplifying
x2 + 0.76x = 1.44

Reorder the terms:
0.76x + x2 = 1.44

Solving
0.76x + x2 = 1.44

Solving for variable 'x'.

Reorder the terms:
-1.44 + 0.76x + x2 = 1.44 + -1.44

Combine like terms: 1.44 + -1.44 = 0.00
-1.44 + 0.76x + x2 = 0.00

Begin completing the square.

Move the constant term to the right:

Add '1.44' to each side of the equation.
-1.44 + 0.76x + 1.44 + x2 = 0.00 + 1.44

Reorder the terms:
-1.44 + 1.44 + 0.76x + x2 = 0.00 + 1.44

Combine like terms: -1.44 + 1.44 = 0.00
0.00 + 0.76x + x2 = 0.00 + 1.44
0.76x + x2 = 0.00 + 1.44

Combine like terms: 0.00 + 1.44 = 1.44
0.76x + x2 = 1.44

The x term is 0.76x.  Take half its coefficient (0.38).
Square it (0.1444) and add it to both sides.

Add '0.1444' to each side of the equation.
0.76x + 0.1444 + x2 = 1.44 + 0.1444

Reorder the terms:
0.1444 + 0.76x + x2 = 1.44 + 0.1444

Combine like terms: 1.44 + 0.1444 = 1.5844
0.1444 + 0.76x + x2 = 1.5844

Factor a perfect square on the left side:
(x + 0.38)(x + 0.38) = 1.5844

Calculate the square root of the right side: 1.258729518

Break this problem into two subproblems by setting 
(x + 0.38) equal to 1.258729518 and -1.258729518.

Subproblem 1

x + 0.38 = 1.258729518 Simplifying x + 0.38 = 1.258729518 Reorder the terms: 0.38 + x = 1.258729518 Solving 0.38 + x = 1.258729518 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.38' to each side of the equation. 0.38 + -0.38 + x = 1.258729518 + -0.38 Combine like terms: 0.38 + -0.38 = 0.00 0.00 + x = 1.258729518 + -0.38 x = 1.258729518 + -0.38 Combine like terms: 1.258729518 + -0.38 = 0.878729518 x = 0.878729518 Simplifying x = 0.878729518

Subproblem 2

x + 0.38 = -1.258729518 Simplifying x + 0.38 = -1.258729518 Reorder the terms: 0.38 + x = -1.258729518 Solving 0.38 + x = -1.258729518 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.38' to each side of the equation. 0.38 + -0.38 + x = -1.258729518 + -0.38 Combine like terms: 0.38 + -0.38 = 0.00 0.00 + x = -1.258729518 + -0.38 x = -1.258729518 + -0.38 Combine like terms: -1.258729518 + -0.38 = -1.638729518 x = -1.638729518 Simplifying x = -1.638729518

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.878729518, -1.638729518}

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