5x^2-7x=96

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Solution for 5x^2-7x=96 equation:


Simplifying
5x2 + -7x = 96

Reorder the terms:
-7x + 5x2 = 96

Solving
-7x + 5x2 = 96

Solving for variable 'x'.

Reorder the terms:
-96 + -7x + 5x2 = 96 + -96

Combine like terms: 96 + -96 = 0
-96 + -7x + 5x2 = 0

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

Divide each side by '5'.
-19.2 + -1.4x + x2 = 0

Move the constant term to the right:

Add '19.2' to each side of the equation.
-19.2 + -1.4x + 19.2 + x2 = 0 + 19.2

Reorder the terms:
-19.2 + 19.2 + -1.4x + x2 = 0 + 19.2

Combine like terms: -19.2 + 19.2 = 0.0
0.0 + -1.4x + x2 = 0 + 19.2
-1.4x + x2 = 0 + 19.2

Combine like terms: 0 + 19.2 = 19.2
-1.4x + x2 = 19.2

The x term is -1.4x.  Take half its coefficient (-0.7).
Square it (0.49) and add it to both sides.

Add '0.49' to each side of the equation.
-1.4x + 0.49 + x2 = 19.2 + 0.49

Reorder the terms:
0.49 + -1.4x + x2 = 19.2 + 0.49

Combine like terms: 19.2 + 0.49 = 19.69
0.49 + -1.4x + x2 = 19.69

Factor a perfect square on the left side:
(x + -0.7)(x + -0.7) = 19.69

Calculate the square root of the right side: 4.437341546

Break this problem into two subproblems by setting 
(x + -0.7) equal to 4.437341546 and -4.437341546.

Subproblem 1

x + -0.7 = 4.437341546 Simplifying x + -0.7 = 4.437341546 Reorder the terms: -0.7 + x = 4.437341546 Solving -0.7 + x = 4.437341546 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.7' to each side of the equation. -0.7 + 0.7 + x = 4.437341546 + 0.7 Combine like terms: -0.7 + 0.7 = 0.0 0.0 + x = 4.437341546 + 0.7 x = 4.437341546 + 0.7 Combine like terms: 4.437341546 + 0.7 = 5.137341546 x = 5.137341546 Simplifying x = 5.137341546

Subproblem 2

x + -0.7 = -4.437341546 Simplifying x + -0.7 = -4.437341546 Reorder the terms: -0.7 + x = -4.437341546 Solving -0.7 + x = -4.437341546 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.7' to each side of the equation. -0.7 + 0.7 + x = -4.437341546 + 0.7 Combine like terms: -0.7 + 0.7 = 0.0 0.0 + x = -4.437341546 + 0.7 x = -4.437341546 + 0.7 Combine like terms: -4.437341546 + 0.7 = -3.737341546 x = -3.737341546 Simplifying x = -3.737341546

Solution

The solution to the problem is based on the solutions from the subproblems. x = {5.137341546, -3.737341546}

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