158x^2-23x-8=0

Simple and best practice solution for 158x^2-23x-8=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 158x^2-23x-8=0 equation:


Simplifying
158x2 + -23x + -8 = 0

Reorder the terms:
-8 + -23x + 158x2 = 0

Solving
-8 + -23x + 158x2 = 0

Solving for variable 'x'.

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

Divide each side by '158'.
-0.05063291139 + -0.1455696203x + x2 = 0

Move the constant term to the right:

Add '0.05063291139' to each side of the equation.
-0.05063291139 + -0.1455696203x + 0.05063291139 + x2 = 0 + 0.05063291139

Reorder the terms:
-0.05063291139 + 0.05063291139 + -0.1455696203x + x2 = 0 + 0.05063291139

Combine like terms: -0.05063291139 + 0.05063291139 = 0.00000000000
0.00000000000 + -0.1455696203x + x2 = 0 + 0.05063291139
-0.1455696203x + x2 = 0 + 0.05063291139

Combine like terms: 0 + 0.05063291139 = 0.05063291139
-0.1455696203x + x2 = 0.05063291139

The x term is -0.1455696203x.  Take half its coefficient (-0.07278481015).
Square it (0.005297628589) and add it to both sides.

Add '0.005297628589' to each side of the equation.
-0.1455696203x + 0.005297628589 + x2 = 0.05063291139 + 0.005297628589

Reorder the terms:
0.005297628589 + -0.1455696203x + x2 = 0.05063291139 + 0.005297628589

Combine like terms: 0.05063291139 + 0.005297628589 = 0.055930539979
0.005297628589 + -0.1455696203x + x2 = 0.055930539979

Factor a perfect square on the left side:
(x + -0.07278481015)(x + -0.07278481015) = 0.055930539979

Calculate the square root of the right side: 0.236496385

Break this problem into two subproblems by setting 
(x + -0.07278481015) equal to 0.236496385 and -0.236496385.

Subproblem 1

x + -0.07278481015 = 0.236496385 Simplifying x + -0.07278481015 = 0.236496385 Reorder the terms: -0.07278481015 + x = 0.236496385 Solving -0.07278481015 + x = 0.236496385 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.07278481015' to each side of the equation. -0.07278481015 + 0.07278481015 + x = 0.236496385 + 0.07278481015 Combine like terms: -0.07278481015 + 0.07278481015 = 0.00000000000 0.00000000000 + x = 0.236496385 + 0.07278481015 x = 0.236496385 + 0.07278481015 Combine like terms: 0.236496385 + 0.07278481015 = 0.30928119515 x = 0.30928119515 Simplifying x = 0.30928119515

Subproblem 2

x + -0.07278481015 = -0.236496385 Simplifying x + -0.07278481015 = -0.236496385 Reorder the terms: -0.07278481015 + x = -0.236496385 Solving -0.07278481015 + x = -0.236496385 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.07278481015' to each side of the equation. -0.07278481015 + 0.07278481015 + x = -0.236496385 + 0.07278481015 Combine like terms: -0.07278481015 + 0.07278481015 = 0.00000000000 0.00000000000 + x = -0.236496385 + 0.07278481015 x = -0.236496385 + 0.07278481015 Combine like terms: -0.236496385 + 0.07278481015 = -0.16371157485 x = -0.16371157485 Simplifying x = -0.16371157485

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.30928119515, -0.16371157485}

See similar equations:

| 7x+18=5x+32 | | x^5-2x^4-4x^3-4x^2-5x+6=0 | | N-(2n+1)=-20 | | 3-6x+7x=0 | | -7-2(r-8)=3 | | 3(x-1)=3x-men | | -5+4x-x=-2 | | -15=-2x-9+4x | | (x^2+12)=(10x+15) | | 5y-15=-9 | | 4b= | | 7d+85=127 | | -30=-6x-3x+6 | | 6(k-2)=48 | | 0.16(12)+0.4x=0.32(12+x) | | -x/4=48 | | 3x-7=5x-27 | | 2x+4y=74 | | (2x+1)(x-2)-x(x+2)=(x-1)(x+3) | | 4(13x+60)(3x-11)=0 | | (x-4)(x-6)=11 | | 5.4x-2=4.4 | | -34=-4m-6 | | 4x=x-2 | | X-6=-2x+27 | | 3(15x+18)=78 | | 15x=-35 | | 8(x-5)=-4(x-7) | | -x+3+2x=5 | | 20p+14q+p-5q-6p= | | 50x=60(x+10) | | .8w-.4w+.1w=5 |

Equations solver categories