5x^2+3x+24=47

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Solution for 5x^2+3x+24=47 equation:


Simplifying
5x2 + 3x + 24 = 47

Reorder the terms:
24 + 3x + 5x2 = 47

Solving
24 + 3x + 5x2 = 47

Solving for variable 'x'.

Reorder the terms:
24 + -47 + 3x + 5x2 = 47 + -47

Combine like terms: 24 + -47 = -23
-23 + 3x + 5x2 = 47 + -47

Combine like terms: 47 + -47 = 0
-23 + 3x + 5x2 = 0

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

Divide each side by '5'.
-4.6 + 0.6x + x2 = 0

Move the constant term to the right:

Add '4.6' to each side of the equation.
-4.6 + 0.6x + 4.6 + x2 = 0 + 4.6

Reorder the terms:
-4.6 + 4.6 + 0.6x + x2 = 0 + 4.6

Combine like terms: -4.6 + 4.6 = 0.0
0.0 + 0.6x + x2 = 0 + 4.6
0.6x + x2 = 0 + 4.6

Combine like terms: 0 + 4.6 = 4.6
0.6x + x2 = 4.6

The x term is 0.6x.  Take half its coefficient (0.3).
Square it (0.09) and add it to both sides.

Add '0.09' to each side of the equation.
0.6x + 0.09 + x2 = 4.6 + 0.09

Reorder the terms:
0.09 + 0.6x + x2 = 4.6 + 0.09

Combine like terms: 4.6 + 0.09 = 4.69
0.09 + 0.6x + x2 = 4.69

Factor a perfect square on the left side:
(x + 0.3)(x + 0.3) = 4.69

Calculate the square root of the right side: 2.165640783

Break this problem into two subproblems by setting 
(x + 0.3) equal to 2.165640783 and -2.165640783.

Subproblem 1

x + 0.3 = 2.165640783 Simplifying x + 0.3 = 2.165640783 Reorder the terms: 0.3 + x = 2.165640783 Solving 0.3 + x = 2.165640783 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.3' to each side of the equation. 0.3 + -0.3 + x = 2.165640783 + -0.3 Combine like terms: 0.3 + -0.3 = 0.0 0.0 + x = 2.165640783 + -0.3 x = 2.165640783 + -0.3 Combine like terms: 2.165640783 + -0.3 = 1.865640783 x = 1.865640783 Simplifying x = 1.865640783

Subproblem 2

x + 0.3 = -2.165640783 Simplifying x + 0.3 = -2.165640783 Reorder the terms: 0.3 + x = -2.165640783 Solving 0.3 + x = -2.165640783 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.3' to each side of the equation. 0.3 + -0.3 + x = -2.165640783 + -0.3 Combine like terms: 0.3 + -0.3 = 0.0 0.0 + x = -2.165640783 + -0.3 x = -2.165640783 + -0.3 Combine like terms: -2.165640783 + -0.3 = -2.465640783 x = -2.465640783 Simplifying x = -2.465640783

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1.865640783, -2.465640783}

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