16x^2+8x=181

Simple and best practice solution for 16x^2+8x=181 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 16x^2+8x=181 equation:


Simplifying
16x2 + 8x = 181

Reorder the terms:
8x + 16x2 = 181

Solving
8x + 16x2 = 181

Solving for variable 'x'.

Reorder the terms:
-181 + 8x + 16x2 = 181 + -181

Combine like terms: 181 + -181 = 0
-181 + 8x + 16x2 = 0

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

Divide each side by '16'.
-11.3125 + 0.5x + x2 = 0

Move the constant term to the right:

Add '11.3125' to each side of the equation.
-11.3125 + 0.5x + 11.3125 + x2 = 0 + 11.3125

Reorder the terms:
-11.3125 + 11.3125 + 0.5x + x2 = 0 + 11.3125

Combine like terms: -11.3125 + 11.3125 = 0.0000
0.0000 + 0.5x + x2 = 0 + 11.3125
0.5x + x2 = 0 + 11.3125

Combine like terms: 0 + 11.3125 = 11.3125
0.5x + x2 = 11.3125

The x term is 0.5x.  Take half its coefficient (0.25).
Square it (0.0625) and add it to both sides.

Add '0.0625' to each side of the equation.
0.5x + 0.0625 + x2 = 11.3125 + 0.0625

Reorder the terms:
0.0625 + 0.5x + x2 = 11.3125 + 0.0625

Combine like terms: 11.3125 + 0.0625 = 11.375
0.0625 + 0.5x + x2 = 11.375

Factor a perfect square on the left side:
(x + 0.25)(x + 0.25) = 11.375

Calculate the square root of the right side: 3.372684391

Break this problem into two subproblems by setting 
(x + 0.25) equal to 3.372684391 and -3.372684391.

Subproblem 1

x + 0.25 = 3.372684391 Simplifying x + 0.25 = 3.372684391 Reorder the terms: 0.25 + x = 3.372684391 Solving 0.25 + x = 3.372684391 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.25' to each side of the equation. 0.25 + -0.25 + x = 3.372684391 + -0.25 Combine like terms: 0.25 + -0.25 = 0.00 0.00 + x = 3.372684391 + -0.25 x = 3.372684391 + -0.25 Combine like terms: 3.372684391 + -0.25 = 3.122684391 x = 3.122684391 Simplifying x = 3.122684391

Subproblem 2

x + 0.25 = -3.372684391 Simplifying x + 0.25 = -3.372684391 Reorder the terms: 0.25 + x = -3.372684391 Solving 0.25 + x = -3.372684391 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.25' to each side of the equation. 0.25 + -0.25 + x = -3.372684391 + -0.25 Combine like terms: 0.25 + -0.25 = 0.00 0.00 + x = -3.372684391 + -0.25 x = -3.372684391 + -0.25 Combine like terms: -3.372684391 + -0.25 = -3.622684391 x = -3.622684391 Simplifying x = -3.622684391

Solution

The solution to the problem is based on the solutions from the subproblems. x = {3.122684391, -3.622684391}

See similar equations:

| 4x-2=33-3y | | 4b-1=4+4b+3 | | -22=y+41 | | 2x^4+22x^3+60x^2= | | 50-x=10 | | 7+4+8p+6p= | | 4x-2=33-3x | | 5-3(x+5)=5x-26 | | -16-4+29-41=-1-3m-8+4m | | 4(5x-2)=42 | | p^3+27q^3=0 | | 15x-9=39x+47 | | 52-x=24 | | 8m^2+64m=0 | | r^2+10r+21= | | 13w+w^2+40=0 | | f(x+8)=X^2-7X-4 | | 0=-5n | | x+(x+10)=50 | | -3v+2=8 | | 25y^2-60y+36=0 | | -10m+2m=15-39 | | X+(x*12)=100 | | 2(3b+4)=b+6 | | 5(x-1)=2x-2 | | (-9+-5)-24= | | 5+2(x+9)=14 | | -3u-4=5 | | 112-88=40y-46y | | 7y+10=-11 | | 6x^2+7x-2=x(7+6x)-2 | | -2(4x+2)-5(3x-1)=0 |

Equations solver categories