13x^2+25x-254=0

Simple and best practice solution for 13x^2+25x-254=0 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 13x^2+25x-254=0 equation:


Simplifying
13x2 + 25x + -254 = 0

Reorder the terms:
-254 + 25x + 13x2 = 0

Solving
-254 + 25x + 13x2 = 0

Solving for variable 'x'.

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

Divide each side by '13'.
-19.53846154 + 1.923076923x + x2 = 0

Move the constant term to the right:

Add '19.53846154' to each side of the equation.
-19.53846154 + 1.923076923x + 19.53846154 + x2 = 0 + 19.53846154

Reorder the terms:
-19.53846154 + 19.53846154 + 1.923076923x + x2 = 0 + 19.53846154

Combine like terms: -19.53846154 + 19.53846154 = 0.00000000
0.00000000 + 1.923076923x + x2 = 0 + 19.53846154
1.923076923x + x2 = 0 + 19.53846154

Combine like terms: 0 + 19.53846154 = 19.53846154
1.923076923x + x2 = 19.53846154

The x term is 1.923076923x.  Take half its coefficient (0.9615384615).
Square it (0.9245562129) and add it to both sides.

Add '0.9245562129' to each side of the equation.
1.923076923x + 0.9245562129 + x2 = 19.53846154 + 0.9245562129

Reorder the terms:
0.9245562129 + 1.923076923x + x2 = 19.53846154 + 0.9245562129

Combine like terms: 19.53846154 + 0.9245562129 = 20.4630177529
0.9245562129 + 1.923076923x + x2 = 20.4630177529

Factor a perfect square on the left side:
(x + 0.9615384615)(x + 0.9615384615) = 20.4630177529

Calculate the square root of the right side: 4.52360672

Break this problem into two subproblems by setting 
(x + 0.9615384615) equal to 4.52360672 and -4.52360672.

Subproblem 1

x + 0.9615384615 = 4.52360672 Simplifying x + 0.9615384615 = 4.52360672 Reorder the terms: 0.9615384615 + x = 4.52360672 Solving 0.9615384615 + x = 4.52360672 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.9615384615' to each side of the equation. 0.9615384615 + -0.9615384615 + x = 4.52360672 + -0.9615384615 Combine like terms: 0.9615384615 + -0.9615384615 = 0.0000000000 0.0000000000 + x = 4.52360672 + -0.9615384615 x = 4.52360672 + -0.9615384615 Combine like terms: 4.52360672 + -0.9615384615 = 3.5620682585 x = 3.5620682585 Simplifying x = 3.5620682585

Subproblem 2

x + 0.9615384615 = -4.52360672 Simplifying x + 0.9615384615 = -4.52360672 Reorder the terms: 0.9615384615 + x = -4.52360672 Solving 0.9615384615 + x = -4.52360672 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.9615384615' to each side of the equation. 0.9615384615 + -0.9615384615 + x = -4.52360672 + -0.9615384615 Combine like terms: 0.9615384615 + -0.9615384615 = 0.0000000000 0.0000000000 + x = -4.52360672 + -0.9615384615 x = -4.52360672 + -0.9615384615 Combine like terms: -4.52360672 + -0.9615384615 = -5.4851451815 x = -5.4851451815 Simplifying x = -5.4851451815

Solution

The solution to the problem is based on the solutions from the subproblems. x = {3.5620682585, -5.4851451815}

See similar equations:

| (1/4)^-3 | | -5x+4=7x-6 | | 8x^12y^13/33x^7y^6 | | 18x-(9x-6)=60 | | X*x-15x+54=0 | | ar+bg+c=0 | | (X^2-4/5x)*(30/3x-6) | | x^2-24x-297=0 | | 5(4x-6)+3(2(x+4))=30x | | x-9y=-61 | | 12w-12= | | 2w^2-41w+20= | | 9-n=17 | | v=-x+2 | | 4(4z+2)-9=95 | | 3/5x-3=x-1/2 | | (1/64)^(2/3)= | | -3+4(2x-7+3x)-5=17x-4(2x-9) | | 12n^2=-4 | | 15x-274=6x-13 | | 15x-276=6x-13 | | y=x-2x+1 | | 7w^2-44w+12= | | (8+u)(4u+2)= | | 49=31-3(x-2) | | 18n+40=n^2 | | 49=31-31x-12 | | 4+35x=-52+19x | | 45-m=70 | | n^2-28=3n | | 0.15x=1000 | | x+29=17 |

Equations solver categories