0=8x^2+134x-189

Simple and best practice solution for 0=8x^2+134x-189 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 0=8x^2+134x-189 equation:


Simplifying
0 = 8x2 + 134x + -189

Reorder the terms:
0 = -189 + 134x + 8x2

Solving
0 = -189 + 134x + 8x2

Solving for variable 'x'.

Combine like terms: 0 + 189 = 189
189 + -134x + -8x2 = -189 + 134x + 8x2 + 189 + -134x + -8x2

Reorder the terms:
189 + -134x + -8x2 = -189 + 189 + 134x + -134x + 8x2 + -8x2

Combine like terms: -189 + 189 = 0
189 + -134x + -8x2 = 0 + 134x + -134x + 8x2 + -8x2
189 + -134x + -8x2 = 134x + -134x + 8x2 + -8x2

Combine like terms: 134x + -134x = 0
189 + -134x + -8x2 = 0 + 8x2 + -8x2
189 + -134x + -8x2 = 8x2 + -8x2

Combine like terms: 8x2 + -8x2 = 0
189 + -134x + -8x2 = 0

Begin completing the square.  Divide all terms by
-8 the coefficient of the squared term: 

Divide each side by '-8'.
-23.625 + 16.75x + x2 = 0

Move the constant term to the right:

Add '23.625' to each side of the equation.
-23.625 + 16.75x + 23.625 + x2 = 0 + 23.625

Reorder the terms:
-23.625 + 23.625 + 16.75x + x2 = 0 + 23.625

Combine like terms: -23.625 + 23.625 = 0.000
0.000 + 16.75x + x2 = 0 + 23.625
16.75x + x2 = 0 + 23.625

Combine like terms: 0 + 23.625 = 23.625
16.75x + x2 = 23.625

The x term is 16.75x.  Take half its coefficient (8.375).
Square it (70.140625) and add it to both sides.

Add '70.140625' to each side of the equation.
16.75x + 70.140625 + x2 = 23.625 + 70.140625

Reorder the terms:
70.140625 + 16.75x + x2 = 23.625 + 70.140625

Combine like terms: 23.625 + 70.140625 = 93.765625
70.140625 + 16.75x + x2 = 93.765625

Factor a perfect square on the left side:
(x + 8.375)(x + 8.375) = 93.765625

Calculate the square root of the right side: 9.683265203

Break this problem into two subproblems by setting 
(x + 8.375) equal to 9.683265203 and -9.683265203.

Subproblem 1

x + 8.375 = 9.683265203 Simplifying x + 8.375 = 9.683265203 Reorder the terms: 8.375 + x = 9.683265203 Solving 8.375 + x = 9.683265203 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-8.375' to each side of the equation. 8.375 + -8.375 + x = 9.683265203 + -8.375 Combine like terms: 8.375 + -8.375 = 0.000 0.000 + x = 9.683265203 + -8.375 x = 9.683265203 + -8.375 Combine like terms: 9.683265203 + -8.375 = 1.308265203 x = 1.308265203 Simplifying x = 1.308265203

Subproblem 2

x + 8.375 = -9.683265203 Simplifying x + 8.375 = -9.683265203 Reorder the terms: 8.375 + x = -9.683265203 Solving 8.375 + x = -9.683265203 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-8.375' to each side of the equation. 8.375 + -8.375 + x = -9.683265203 + -8.375 Combine like terms: 8.375 + -8.375 = 0.000 0.000 + x = -9.683265203 + -8.375 x = -9.683265203 + -8.375 Combine like terms: -9.683265203 + -8.375 = -18.058265203 x = -18.058265203 Simplifying x = -18.058265203

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1.308265203, -18.058265203}

See similar equations:

| .25+8x=.50+6x | | X+x+5=152 | | 7(6+x)=6(x-6) | | 3xX+6=45 | | 9-4x=9x+10 | | 16x=8x | | 6x+7x-17=51-4x | | 2x+6-7x=-5x+2 | | 3.3t^2+8.7t-9.4t^2+5t= | | 4x-6=5x+15 | | 7x-12+9-3x=5x | | 0.12-0.02(x+2)=-0.01(1-x) | | 9+3y=-6 | | 4-.25x+x=6.4 | | 3x^3-21x^2+36x= | | 12x-3-11x-3=-10 | | 3A-4B+5A= | | 3x^3-21x^2+36= | | x^2=.1275 | | X+22+24=-4-2x-9 | | 3(4x-1)+2=16x-1-4x | | 0.4x-7=41 | | 5x^2-15=30 | | 5(6-x)=-3(x+2) | | 105+75+9x=450 | | 5r-2r+9=7r-r | | -4(3-6d)=9(2-2d) | | 3v^2-4u+vu-12v=0 | | (3x+9)+8y=180 | | 130=38.76+0.50x | | 15=z+11 | | m+14=17 |

Equations solver categories