25x^2-30x=12

Simple and best practice solution for 25x^2-30x=12 equation. Check how easy it is, and learn it for the future. Our solution is simple, and easy to understand, so don`t hesitate to use it as a solution of your homework.

If it's not what You are looking for type in the equation solver your own equation and let us solve it.

Solution for 25x^2-30x=12 equation:


Simplifying
25x2 + -30x = 12

Reorder the terms:
-30x + 25x2 = 12

Solving
-30x + 25x2 = 12

Solving for variable 'x'.

Reorder the terms:
-12 + -30x + 25x2 = 12 + -12

Combine like terms: 12 + -12 = 0
-12 + -30x + 25x2 = 0

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

Divide each side by '25'.
-0.48 + -1.2x + x2 = 0

Move the constant term to the right:

Add '0.48' to each side of the equation.
-0.48 + -1.2x + 0.48 + x2 = 0 + 0.48

Reorder the terms:
-0.48 + 0.48 + -1.2x + x2 = 0 + 0.48

Combine like terms: -0.48 + 0.48 = 0.00
0.00 + -1.2x + x2 = 0 + 0.48
-1.2x + x2 = 0 + 0.48

Combine like terms: 0 + 0.48 = 0.48
-1.2x + x2 = 0.48

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 = 0.48 + 0.36

Reorder the terms:
0.36 + -1.2x + x2 = 0.48 + 0.36

Combine like terms: 0.48 + 0.36 = 0.84
0.36 + -1.2x + x2 = 0.84

Factor a perfect square on the left side:
(x + -0.6)(x + -0.6) = 0.84

Calculate the square root of the right side: 0.916515139

Break this problem into two subproblems by setting 
(x + -0.6) equal to 0.916515139 and -0.916515139.

Subproblem 1

x + -0.6 = 0.916515139 Simplifying x + -0.6 = 0.916515139 Reorder the terms: -0.6 + x = 0.916515139 Solving -0.6 + x = 0.916515139 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 = 0.916515139 + 0.6 Combine like terms: -0.6 + 0.6 = 0.0 0.0 + x = 0.916515139 + 0.6 x = 0.916515139 + 0.6 Combine like terms: 0.916515139 + 0.6 = 1.516515139 x = 1.516515139 Simplifying x = 1.516515139

Subproblem 2

x + -0.6 = -0.916515139 Simplifying x + -0.6 = -0.916515139 Reorder the terms: -0.6 + x = -0.916515139 Solving -0.6 + x = -0.916515139 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 = -0.916515139 + 0.6 Combine like terms: -0.6 + 0.6 = 0.0 0.0 + x = -0.916515139 + 0.6 x = -0.916515139 + 0.6 Combine like terms: -0.916515139 + 0.6 = -0.316515139 x = -0.316515139 Simplifying x = -0.316515139

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1.516515139, -0.316515139}

See similar equations:

| 3h-5=19 | | x(5x+7)=7 | | 3p+1-p^2-3p^3=0 | | 4-2e+3-e= | | 572.265=3.14r^2 | | 6x-2=6(x-6) | | 2x+18=16+4(x+7) | | 48.8=-0.037t+50.1 | | x=13x+24 | | 13x+10=12x | | -72=-18x-6x | | 108=-3x-6x | | 2x+18=16+4(v+7) | | -2x=6x-64 | | 15x+50=10x | | 5x=9x+24 | | 13x=10x-3 | | 7x/24-13y/24 | | 9x=x+88 | | 9x+7x=15x+1 | | 400.9466=3.14r^2 | | 16x-3x=13 | | (y/4)^2=0 | | (y/4)^2 | | 20x-15x=75 | | 3x-14+(2x-18)=2x-2 | | 2(5x+7)=10x+14 | | Log(51x)= | | 4x+8=-46-5x | | H=16t^2+40t+4 | | 5x(y-3)=55 | | -45=2 |

Equations solver categories