48x^2-28x=3

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Solution for 48x^2-28x=3 equation:


Simplifying
48x2 + -28x = 3

Reorder the terms:
-28x + 48x2 = 3

Solving
-28x + 48x2 = 3

Solving for variable 'x'.

Reorder the terms:
-3 + -28x + 48x2 = 3 + -3

Combine like terms: 3 + -3 = 0
-3 + -28x + 48x2 = 0

Begin completing the square.  Divide all terms by
48 the coefficient of the squared term: 

Divide each side by '48'.
-0.0625 + -0.5833333333x + x2 = 0

Move the constant term to the right:

Add '0.0625' to each side of the equation.
-0.0625 + -0.5833333333x + 0.0625 + x2 = 0 + 0.0625

Reorder the terms:
-0.0625 + 0.0625 + -0.5833333333x + x2 = 0 + 0.0625

Combine like terms: -0.0625 + 0.0625 = 0.0000
0.0000 + -0.5833333333x + x2 = 0 + 0.0625
-0.5833333333x + x2 = 0 + 0.0625

Combine like terms: 0 + 0.0625 = 0.0625
-0.5833333333x + x2 = 0.0625

The x term is -0.5833333333x.  Take half its coefficient (-0.2916666667).
Square it (0.08506944446) and add it to both sides.

Add '0.08506944446' to each side of the equation.
-0.5833333333x + 0.08506944446 + x2 = 0.0625 + 0.08506944446

Reorder the terms:
0.08506944446 + -0.5833333333x + x2 = 0.0625 + 0.08506944446

Combine like terms: 0.0625 + 0.08506944446 = 0.14756944446
0.08506944446 + -0.5833333333x + x2 = 0.14756944446

Factor a perfect square on the left side:
(x + -0.2916666667)(x + -0.2916666667) = 0.14756944446

Calculate the square root of the right side: 0.384147686

Break this problem into two subproblems by setting 
(x + -0.2916666667) equal to 0.384147686 and -0.384147686.

Subproblem 1

x + -0.2916666667 = 0.384147686 Simplifying x + -0.2916666667 = 0.384147686 Reorder the terms: -0.2916666667 + x = 0.384147686 Solving -0.2916666667 + x = 0.384147686 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.2916666667' to each side of the equation. -0.2916666667 + 0.2916666667 + x = 0.384147686 + 0.2916666667 Combine like terms: -0.2916666667 + 0.2916666667 = 0.0000000000 0.0000000000 + x = 0.384147686 + 0.2916666667 x = 0.384147686 + 0.2916666667 Combine like terms: 0.384147686 + 0.2916666667 = 0.6758143527 x = 0.6758143527 Simplifying x = 0.6758143527

Subproblem 2

x + -0.2916666667 = -0.384147686 Simplifying x + -0.2916666667 = -0.384147686 Reorder the terms: -0.2916666667 + x = -0.384147686 Solving -0.2916666667 + x = -0.384147686 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.2916666667' to each side of the equation. -0.2916666667 + 0.2916666667 + x = -0.384147686 + 0.2916666667 Combine like terms: -0.2916666667 + 0.2916666667 = 0.0000000000 0.0000000000 + x = -0.384147686 + 0.2916666667 x = -0.384147686 + 0.2916666667 Combine like terms: -0.384147686 + 0.2916666667 = -0.0924810193 x = -0.0924810193 Simplifying x = -0.0924810193

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.6758143527, -0.0924810193}

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