2x^2+3x-48=0

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Solution for 2x^2+3x-48=0 equation:


Simplifying
2x2 + 3x + -48 = 0

Reorder the terms:
-48 + 3x + 2x2 = 0

Solving
-48 + 3x + 2x2 = 0

Solving for variable 'x'.

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

Divide each side by '2'.
-24 + 1.5x + x2 = 0

Move the constant term to the right:

Add '24' to each side of the equation.
-24 + 1.5x + 24 + x2 = 0 + 24

Reorder the terms:
-24 + 24 + 1.5x + x2 = 0 + 24

Combine like terms: -24 + 24 = 0
0 + 1.5x + x2 = 0 + 24
1.5x + x2 = 0 + 24

Combine like terms: 0 + 24 = 24
1.5x + x2 = 24

The x term is 1.5x.  Take half its coefficient (0.75).
Square it (0.5625) and add it to both sides.

Add '0.5625' to each side of the equation.
1.5x + 0.5625 + x2 = 24 + 0.5625

Reorder the terms:
0.5625 + 1.5x + x2 = 24 + 0.5625

Combine like terms: 24 + 0.5625 = 24.5625
0.5625 + 1.5x + x2 = 24.5625

Factor a perfect square on the left side:
(x + 0.75)(x + 0.75) = 24.5625

Calculate the square root of the right side: 4.9560569

Break this problem into two subproblems by setting 
(x + 0.75) equal to 4.9560569 and -4.9560569.

Subproblem 1

x + 0.75 = 4.9560569 Simplifying x + 0.75 = 4.9560569 Reorder the terms: 0.75 + x = 4.9560569 Solving 0.75 + x = 4.9560569 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.75' to each side of the equation. 0.75 + -0.75 + x = 4.9560569 + -0.75 Combine like terms: 0.75 + -0.75 = 0.00 0.00 + x = 4.9560569 + -0.75 x = 4.9560569 + -0.75 Combine like terms: 4.9560569 + -0.75 = 4.2060569 x = 4.2060569 Simplifying x = 4.2060569

Subproblem 2

x + 0.75 = -4.9560569 Simplifying x + 0.75 = -4.9560569 Reorder the terms: 0.75 + x = -4.9560569 Solving 0.75 + x = -4.9560569 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.75' to each side of the equation. 0.75 + -0.75 + x = -4.9560569 + -0.75 Combine like terms: 0.75 + -0.75 = 0.00 0.00 + x = -4.9560569 + -0.75 x = -4.9560569 + -0.75 Combine like terms: -4.9560569 + -0.75 = -5.7060569 x = -5.7060569 Simplifying x = -5.7060569

Solution

The solution to the problem is based on the solutions from the subproblems. x = {4.2060569, -5.7060569}

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