25x^2-30x+9=96

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Solution for 25x^2-30x+9=96 equation:


Simplifying
25x2 + -30x + 9 = 96

Reorder the terms:
9 + -30x + 25x2 = 96

Solving
9 + -30x + 25x2 = 96

Solving for variable 'x'.

Reorder the terms:
9 + -96 + -30x + 25x2 = 96 + -96

Combine like terms: 9 + -96 = -87
-87 + -30x + 25x2 = 96 + -96

Combine like terms: 96 + -96 = 0
-87 + -30x + 25x2 = 0

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

Divide each side by '25'.
-3.48 + -1.2x + x2 = 0

Move the constant term to the right:

Add '3.48' to each side of the equation.
-3.48 + -1.2x + 3.48 + x2 = 0 + 3.48

Reorder the terms:
-3.48 + 3.48 + -1.2x + x2 = 0 + 3.48

Combine like terms: -3.48 + 3.48 = 0.00
0.00 + -1.2x + x2 = 0 + 3.48
-1.2x + x2 = 0 + 3.48

Combine like terms: 0 + 3.48 = 3.48
-1.2x + x2 = 3.48

The x term is -1.2x.  Take half its coefficient (-0.6).
Square it (0.36) and add it to both sides.

Add '0.36' to each side of the equation.
-1.2x + 0.36 + x2 = 3.48 + 0.36

Reorder the terms:
0.36 + -1.2x + x2 = 3.48 + 0.36

Combine like terms: 3.48 + 0.36 = 3.84
0.36 + -1.2x + x2 = 3.84

Factor a perfect square on the left side:
(x + -0.6)(x + -0.6) = 3.84

Calculate the square root of the right side: 1.959591794

Break this problem into two subproblems by setting 
(x + -0.6) equal to 1.959591794 and -1.959591794.

Subproblem 1

x + -0.6 = 1.959591794 Simplifying x + -0.6 = 1.959591794 Reorder the terms: -0.6 + x = 1.959591794 Solving -0.6 + x = 1.959591794 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.6' to each side of the equation. -0.6 + 0.6 + x = 1.959591794 + 0.6 Combine like terms: -0.6 + 0.6 = 0.0 0.0 + x = 1.959591794 + 0.6 x = 1.959591794 + 0.6 Combine like terms: 1.959591794 + 0.6 = 2.559591794 x = 2.559591794 Simplifying x = 2.559591794

Subproblem 2

x + -0.6 = -1.959591794 Simplifying x + -0.6 = -1.959591794 Reorder the terms: -0.6 + x = -1.959591794 Solving -0.6 + x = -1.959591794 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.6' to each side of the equation. -0.6 + 0.6 + x = -1.959591794 + 0.6 Combine like terms: -0.6 + 0.6 = 0.0 0.0 + x = -1.959591794 + 0.6 x = -1.959591794 + 0.6 Combine like terms: -1.959591794 + 0.6 = -1.359591794 x = -1.359591794 Simplifying x = -1.359591794

Solution

The solution to the problem is based on the solutions from the subproblems. x = {2.559591794, -1.359591794}

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