5x^2+24x=16

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Solution for 5x^2+24x=16 equation:


Simplifying
5x2 + 24x = 16

Reorder the terms:
24x + 5x2 = 16

Solving
24x + 5x2 = 16

Solving for variable 'x'.

Reorder the terms:
-16 + 24x + 5x2 = 16 + -16

Combine like terms: 16 + -16 = 0
-16 + 24x + 5x2 = 0

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

Divide each side by '5'.
-3.2 + 4.8x + x2 = 0

Move the constant term to the right:

Add '3.2' to each side of the equation.
-3.2 + 4.8x + 3.2 + x2 = 0 + 3.2

Reorder the terms:
-3.2 + 3.2 + 4.8x + x2 = 0 + 3.2

Combine like terms: -3.2 + 3.2 = 0.0
0.0 + 4.8x + x2 = 0 + 3.2
4.8x + x2 = 0 + 3.2

Combine like terms: 0 + 3.2 = 3.2
4.8x + x2 = 3.2

The x term is 4.8x.  Take half its coefficient (2.4).
Square it (5.76) and add it to both sides.

Add '5.76' to each side of the equation.
4.8x + 5.76 + x2 = 3.2 + 5.76

Reorder the terms:
5.76 + 4.8x + x2 = 3.2 + 5.76

Combine like terms: 3.2 + 5.76 = 8.96
5.76 + 4.8x + x2 = 8.96

Factor a perfect square on the left side:
(x + 2.4)(x + 2.4) = 8.96

Calculate the square root of the right side: 2.993325909

Break this problem into two subproblems by setting 
(x + 2.4) equal to 2.993325909 and -2.993325909.

Subproblem 1

x + 2.4 = 2.993325909 Simplifying x + 2.4 = 2.993325909 Reorder the terms: 2.4 + x = 2.993325909 Solving 2.4 + x = 2.993325909 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2.4' to each side of the equation. 2.4 + -2.4 + x = 2.993325909 + -2.4 Combine like terms: 2.4 + -2.4 = 0.0 0.0 + x = 2.993325909 + -2.4 x = 2.993325909 + -2.4 Combine like terms: 2.993325909 + -2.4 = 0.593325909 x = 0.593325909 Simplifying x = 0.593325909

Subproblem 2

x + 2.4 = -2.993325909 Simplifying x + 2.4 = -2.993325909 Reorder the terms: 2.4 + x = -2.993325909 Solving 2.4 + x = -2.993325909 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2.4' to each side of the equation. 2.4 + -2.4 + x = -2.993325909 + -2.4 Combine like terms: 2.4 + -2.4 = 0.0 0.0 + x = -2.993325909 + -2.4 x = -2.993325909 + -2.4 Combine like terms: -2.993325909 + -2.4 = -5.393325909 x = -5.393325909 Simplifying x = -5.393325909

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.593325909, -5.393325909}

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