18x^2-37x-70=0

Simple and best practice solution for 18x^2-37x-70=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 18x^2-37x-70=0 equation:


Simplifying
18x2 + -37x + -70 = 0

Reorder the terms:
-70 + -37x + 18x2 = 0

Solving
-70 + -37x + 18x2 = 0

Solving for variable 'x'.

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

Divide each side by '18'.
-3.888888889 + -2.055555556x + x2 = 0

Move the constant term to the right:

Add '3.888888889' to each side of the equation.
-3.888888889 + -2.055555556x + 3.888888889 + x2 = 0 + 3.888888889

Reorder the terms:
-3.888888889 + 3.888888889 + -2.055555556x + x2 = 0 + 3.888888889

Combine like terms: -3.888888889 + 3.888888889 = 0.000000000
0.000000000 + -2.055555556x + x2 = 0 + 3.888888889
-2.055555556x + x2 = 0 + 3.888888889

Combine like terms: 0 + 3.888888889 = 3.888888889
-2.055555556x + x2 = 3.888888889

The x term is -2.055555556x.  Take half its coefficient (-1.027777778).
Square it (1.056327161) and add it to both sides.

Add '1.056327161' to each side of the equation.
-2.055555556x + 1.056327161 + x2 = 3.888888889 + 1.056327161

Reorder the terms:
1.056327161 + -2.055555556x + x2 = 3.888888889 + 1.056327161

Combine like terms: 3.888888889 + 1.056327161 = 4.94521605
1.056327161 + -2.055555556x + x2 = 4.94521605

Factor a perfect square on the left side:
(x + -1.027777778)(x + -1.027777778) = 4.94521605

Calculate the square root of the right side: 2.223784173

Break this problem into two subproblems by setting 
(x + -1.027777778) equal to 2.223784173 and -2.223784173.

Subproblem 1

x + -1.027777778 = 2.223784173 Simplifying x + -1.027777778 = 2.223784173 Reorder the terms: -1.027777778 + x = 2.223784173 Solving -1.027777778 + x = 2.223784173 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.027777778' to each side of the equation. -1.027777778 + 1.027777778 + x = 2.223784173 + 1.027777778 Combine like terms: -1.027777778 + 1.027777778 = 0.000000000 0.000000000 + x = 2.223784173 + 1.027777778 x = 2.223784173 + 1.027777778 Combine like terms: 2.223784173 + 1.027777778 = 3.251561951 x = 3.251561951 Simplifying x = 3.251561951

Subproblem 2

x + -1.027777778 = -2.223784173 Simplifying x + -1.027777778 = -2.223784173 Reorder the terms: -1.027777778 + x = -2.223784173 Solving -1.027777778 + x = -2.223784173 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.027777778' to each side of the equation. -1.027777778 + 1.027777778 + x = -2.223784173 + 1.027777778 Combine like terms: -1.027777778 + 1.027777778 = 0.000000000 0.000000000 + x = -2.223784173 + 1.027777778 x = -2.223784173 + 1.027777778 Combine like terms: -2.223784173 + 1.027777778 = -1.196006395 x = -1.196006395 Simplifying x = -1.196006395

Solution

The solution to the problem is based on the solutions from the subproblems. x = {3.251561951, -1.196006395}

See similar equations:

| 14+m=-3 | | 6x+10y=60 | | 11x+-44=9 | | 46+2r+3r=53 | | 6-5m=8-3m | | 10t=10t+20 | | -11x+y=13 | | a^2-144=0 | | (x-5)+11=9 | | (2c+3)(2c-3)= | | -2/5=3+7 | | 175000.00+550.00x=220650.00 | | 3(4-2)=12x | | 3c+4=12+10 | | 5n+20n=(n+20) | | (2x-6)(x+3)= | | 8*w+2.6-3.6=63 | | (2x-6)(x-3)= | | 35000.00+1680.00x=175000.00+550.00x | | 3x-66=x | | 4(x-8)+20=5 | | (5h-3)(h+7)= | | 6x+9=-117-8x | | 7x-8=5x+4 | | 9-9x=57-23x | | (v+7)(v-7)= | | 6=8[s-.75]-20 | | y(2y^2-3y+6)= | | 2(2x+0.5)=3(x-0.66) | | 44x+2y=450 | | -27+19= | | 25.00=20.00+15x |

Equations solver categories