0=-2x^2-34x+289

Simple and best practice solution for 0=-2x^2-34x+289 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=-2x^2-34x+289 equation:


Simplifying
0 = -2x2 + -34x + 289

Reorder the terms:
0 = 289 + -34x + -2x2

Solving
0 = 289 + -34x + -2x2

Solving for variable 'x'.

Combine like terms: 0 + -289 = -289
-289 + 34x + 2x2 = 289 + -34x + -2x2 + -289 + 34x + 2x2

Reorder the terms:
-289 + 34x + 2x2 = 289 + -289 + -34x + 34x + -2x2 + 2x2

Combine like terms: 289 + -289 = 0
-289 + 34x + 2x2 = 0 + -34x + 34x + -2x2 + 2x2
-289 + 34x + 2x2 = -34x + 34x + -2x2 + 2x2

Combine like terms: -34x + 34x = 0
-289 + 34x + 2x2 = 0 + -2x2 + 2x2
-289 + 34x + 2x2 = -2x2 + 2x2

Combine like terms: -2x2 + 2x2 = 0
-289 + 34x + 2x2 = 0

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

Divide each side by '2'.
-144.5 + 17x + x2 = 0

Move the constant term to the right:

Add '144.5' to each side of the equation.
-144.5 + 17x + 144.5 + x2 = 0 + 144.5

Reorder the terms:
-144.5 + 144.5 + 17x + x2 = 0 + 144.5

Combine like terms: -144.5 + 144.5 = 0.0
0.0 + 17x + x2 = 0 + 144.5
17x + x2 = 0 + 144.5

Combine like terms: 0 + 144.5 = 144.5
17x + x2 = 144.5

The x term is 17x.  Take half its coefficient (8.5).
Square it (72.25) and add it to both sides.

Add '72.25' to each side of the equation.
17x + 72.25 + x2 = 144.5 + 72.25

Reorder the terms:
72.25 + 17x + x2 = 144.5 + 72.25

Combine like terms: 144.5 + 72.25 = 216.75
72.25 + 17x + x2 = 216.75

Factor a perfect square on the left side:
(x + 8.5)(x + 8.5) = 216.75

Calculate the square root of the right side: 14.722431864

Break this problem into two subproblems by setting 
(x + 8.5) equal to 14.722431864 and -14.722431864.

Subproblem 1

x + 8.5 = 14.722431864 Simplifying x + 8.5 = 14.722431864 Reorder the terms: 8.5 + x = 14.722431864 Solving 8.5 + x = 14.722431864 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-8.5' to each side of the equation. 8.5 + -8.5 + x = 14.722431864 + -8.5 Combine like terms: 8.5 + -8.5 = 0.0 0.0 + x = 14.722431864 + -8.5 x = 14.722431864 + -8.5 Combine like terms: 14.722431864 + -8.5 = 6.222431864 x = 6.222431864 Simplifying x = 6.222431864

Subproblem 2

x + 8.5 = -14.722431864 Simplifying x + 8.5 = -14.722431864 Reorder the terms: 8.5 + x = -14.722431864 Solving 8.5 + x = -14.722431864 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-8.5' to each side of the equation. 8.5 + -8.5 + x = -14.722431864 + -8.5 Combine like terms: 8.5 + -8.5 = 0.0 0.0 + x = -14.722431864 + -8.5 x = -14.722431864 + -8.5 Combine like terms: -14.722431864 + -8.5 = -23.222431864 x = -23.222431864 Simplifying x = -23.222431864

Solution

The solution to the problem is based on the solutions from the subproblems. x = {6.222431864, -23.222431864}

See similar equations:

| |x|=-2/7 | | 80x^2-x-3=0 | | 5m^2-10m-120=0 | | -2(x+3)=-6-2x | | 16t^2-64t=-3 | | 40*0.0000000588235+y*2*0.0000000588235=0.0000025380711 | | 21k^2-60k-96=0 | | t^3+2*t+3=0 | | 6x=27-3r | | 5u^3+7u^2+25u+35=0 | | 6z-5-7z=-34 | | 3y+4=8v-6 | | 40+2y=5 | | 6x^2+383=0 | | 2y=5y-18 | | Log^7(4x-3)=2 | | -9(1-3v)=-25 | | 35n^2+47n+6=0 | | X/2-14=26 | | 7x+9=-24 | | 29=-3(4h-5) | | 4(2x+5)+2=-7x+22 | | -6(9+2x)=-26 | | x=144-9y^2 | | y=9x^2+90x-157 | | 9x-7y+2z=7 | | X^2+3y^2=15 | | -1.2x+1.8=-2.4 | | 90=-2w^2+8w | | 1-2a-8a=-5(a+5)-2(a-1) | | (X+36)= | | 8/9×4×5= |

Equations solver categories