4x^2-9x-41=0

Simple and best practice solution for 4x^2-9x-41=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 4x^2-9x-41=0 equation:


Simplifying
4x2 + -9x + -41 = 0

Reorder the terms:
-41 + -9x + 4x2 = 0

Solving
-41 + -9x + 4x2 = 0

Solving for variable 'x'.

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

Divide each side by '4'.
-10.25 + -2.25x + x2 = 0

Move the constant term to the right:

Add '10.25' to each side of the equation.
-10.25 + -2.25x + 10.25 + x2 = 0 + 10.25

Reorder the terms:
-10.25 + 10.25 + -2.25x + x2 = 0 + 10.25

Combine like terms: -10.25 + 10.25 = 0.00
0.00 + -2.25x + x2 = 0 + 10.25
-2.25x + x2 = 0 + 10.25

Combine like terms: 0 + 10.25 = 10.25
-2.25x + x2 = 10.25

The x term is -2.25x.  Take half its coefficient (-1.125).
Square it (1.265625) and add it to both sides.

Add '1.265625' to each side of the equation.
-2.25x + 1.265625 + x2 = 10.25 + 1.265625

Reorder the terms:
1.265625 + -2.25x + x2 = 10.25 + 1.265625

Combine like terms: 10.25 + 1.265625 = 11.515625
1.265625 + -2.25x + x2 = 11.515625

Factor a perfect square on the left side:
(x + -1.125)(x + -1.125) = 11.515625

Calculate the square root of the right side: 3.39346799

Break this problem into two subproblems by setting 
(x + -1.125) equal to 3.39346799 and -3.39346799.

Subproblem 1

x + -1.125 = 3.39346799 Simplifying x + -1.125 = 3.39346799 Reorder the terms: -1.125 + x = 3.39346799 Solving -1.125 + x = 3.39346799 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.125' to each side of the equation. -1.125 + 1.125 + x = 3.39346799 + 1.125 Combine like terms: -1.125 + 1.125 = 0.000 0.000 + x = 3.39346799 + 1.125 x = 3.39346799 + 1.125 Combine like terms: 3.39346799 + 1.125 = 4.51846799 x = 4.51846799 Simplifying x = 4.51846799

Subproblem 2

x + -1.125 = -3.39346799 Simplifying x + -1.125 = -3.39346799 Reorder the terms: -1.125 + x = -3.39346799 Solving -1.125 + x = -3.39346799 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.125' to each side of the equation. -1.125 + 1.125 + x = -3.39346799 + 1.125 Combine like terms: -1.125 + 1.125 = 0.000 0.000 + x = -3.39346799 + 1.125 x = -3.39346799 + 1.125 Combine like terms: -3.39346799 + 1.125 = -2.26846799 x = -2.26846799 Simplifying x = -2.26846799

Solution

The solution to the problem is based on the solutions from the subproblems. x = {4.51846799, -2.26846799}

See similar equations:

| 6x+10-4x-1=3x+7 | | y=-9x+b | | 11x+11y= | | 0.4+x=1 | | 5q+18q=8 | | 9x-15=48 | | 3x^2+9=156 | | -0.6(2x+1)-0.1= | | 6[4(3+x)-14]+2*2=0 | | 5x+18=78 | | 4t^2+36= | | 4t^2=36 | | 3(-2x+1)--4x=-1x+19 | | 4a^2-b^2= | | 3(-2x)= | | -2x=-3x | | -2x=-2x | | 3(-2x+1)-4x=-1x+19 | | a^2+a-3= | | -10x+3y=20 | | 4n+3y= | | x+54=95 | | -0.4(4x+5)-0.5= | | 3x^4y+6x^3-72x^2y= | | 3(2x+6)=6x+18-7(x-1)-56 | | 3+x^2-5= | | 5(x+y)+x(x+Y)= | | 0=-x^2-9x-18 | | -9(4x+8)+2= | | 0=-x^2-10x-25 | | 3x-2=6(x-9)-5 | | 12-2d=2 |

Equations solver categories