5x^2-12x-227=0

Simple and best practice solution for 5x^2-12x-227=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 5x^2-12x-227=0 equation:


Simplifying
5x2 + -12x + -227 = 0

Reorder the terms:
-227 + -12x + 5x2 = 0

Solving
-227 + -12x + 5x2 = 0

Solving for variable 'x'.

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

Divide each side by '5'.
-45.4 + -2.4x + x2 = 0

Move the constant term to the right:

Add '45.4' to each side of the equation.
-45.4 + -2.4x + 45.4 + x2 = 0 + 45.4

Reorder the terms:
-45.4 + 45.4 + -2.4x + x2 = 0 + 45.4

Combine like terms: -45.4 + 45.4 = 0.0
0.0 + -2.4x + x2 = 0 + 45.4
-2.4x + x2 = 0 + 45.4

Combine like terms: 0 + 45.4 = 45.4
-2.4x + x2 = 45.4

The x term is -2.4x.  Take half its coefficient (-1.2).
Square it (1.44) and add it to both sides.

Add '1.44' to each side of the equation.
-2.4x + 1.44 + x2 = 45.4 + 1.44

Reorder the terms:
1.44 + -2.4x + x2 = 45.4 + 1.44

Combine like terms: 45.4 + 1.44 = 46.84
1.44 + -2.4x + x2 = 46.84

Factor a perfect square on the left side:
(x + -1.2)(x + -1.2) = 46.84

Calculate the square root of the right side: 6.843975453

Break this problem into two subproblems by setting 
(x + -1.2) equal to 6.843975453 and -6.843975453.

Subproblem 1

x + -1.2 = 6.843975453 Simplifying x + -1.2 = 6.843975453 Reorder the terms: -1.2 + x = 6.843975453 Solving -1.2 + x = 6.843975453 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.2' to each side of the equation. -1.2 + 1.2 + x = 6.843975453 + 1.2 Combine like terms: -1.2 + 1.2 = 0.0 0.0 + x = 6.843975453 + 1.2 x = 6.843975453 + 1.2 Combine like terms: 6.843975453 + 1.2 = 8.043975453 x = 8.043975453 Simplifying x = 8.043975453

Subproblem 2

x + -1.2 = -6.843975453 Simplifying x + -1.2 = -6.843975453 Reorder the terms: -1.2 + x = -6.843975453 Solving -1.2 + x = -6.843975453 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.2' to each side of the equation. -1.2 + 1.2 + x = -6.843975453 + 1.2 Combine like terms: -1.2 + 1.2 = 0.0 0.0 + x = -6.843975453 + 1.2 x = -6.843975453 + 1.2 Combine like terms: -6.843975453 + 1.2 = -5.643975453 x = -5.643975453 Simplifying x = -5.643975453

Solution

The solution to the problem is based on the solutions from the subproblems. x = {8.043975453, -5.643975453}

See similar equations:

| -8x-9=-15-7x | | 12x^4y^3/2x^3y^7 | | 100+x+y=144 | | z^2-8z+1=0 | | g(4)=3x^2+5 | | 7n-5n+18=-4 | | 2p+10=20-4p | | 6(3x+7)=35 | | 8x-7y=38 | | 9h=8h-3 | | 54n+54=108 | | 6[3x+1]=12x+24 | | z-7.8=32.7 | | 6x-6=7x-17 | | -5x-5=11-4x | | 2x-2(3x-1)=30 | | X^2-y^2=203 | | 5x-5=11-4x | | -122=2(8r+3) | | 5.7X-3.1(x+5)=-3.02 | | 11t+3(1-5t)= | | 10x/20=5 | | y+5=4y+5 | | 8(7p-5)=240 | | 25x^2-120=35x | | 5+6x=5x | | 5y+3x=6y+5 | | 15/60=4/X | | D=145 | | 7x8/2*3 | | 5/(4x-5)=1/3 | | 10m+3n-4m+10n= |

Equations solver categories