200x^2-12x-18.4=0

Simple and best practice solution for 200x^2-12x-18.4=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 200x^2-12x-18.4=0 equation:


Simplifying
200x2 + -12x + -18.4 = 0

Reorder the terms:
-18.4 + -12x + 200x2 = 0

Solving
-18.4 + -12x + 200x2 = 0

Solving for variable 'x'.

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

Divide each side by '200'.
-0.092 + -0.06x + x2 = 0

Move the constant term to the right:

Add '0.092' to each side of the equation.
-0.092 + -0.06x + 0.092 + x2 = 0 + 0.092

Reorder the terms:
-0.092 + 0.092 + -0.06x + x2 = 0 + 0.092

Combine like terms: -0.092 + 0.092 = 0.000
0.000 + -0.06x + x2 = 0 + 0.092
-0.06x + x2 = 0 + 0.092

Combine like terms: 0 + 0.092 = 0.092
-0.06x + x2 = 0.092

The x term is -0.06x.  Take half its coefficient (-0.03).
Square it (0.0009) and add it to both sides.

Add '0.0009' to each side of the equation.
-0.06x + 0.0009 + x2 = 0.092 + 0.0009

Reorder the terms:
0.0009 + -0.06x + x2 = 0.092 + 0.0009

Combine like terms: 0.092 + 0.0009 = 0.0929
0.0009 + -0.06x + x2 = 0.0929

Factor a perfect square on the left side:
(x + -0.03)(x + -0.03) = 0.0929

Calculate the square root of the right side: 0.304795013

Break this problem into two subproblems by setting 
(x + -0.03) equal to 0.304795013 and -0.304795013.

Subproblem 1

x + -0.03 = 0.304795013 Simplifying x + -0.03 = 0.304795013 Reorder the terms: -0.03 + x = 0.304795013 Solving -0.03 + x = 0.304795013 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.03' to each side of the equation. -0.03 + 0.03 + x = 0.304795013 + 0.03 Combine like terms: -0.03 + 0.03 = 0.00 0.00 + x = 0.304795013 + 0.03 x = 0.304795013 + 0.03 Combine like terms: 0.304795013 + 0.03 = 0.334795013 x = 0.334795013 Simplifying x = 0.334795013

Subproblem 2

x + -0.03 = -0.304795013 Simplifying x + -0.03 = -0.304795013 Reorder the terms: -0.03 + x = -0.304795013 Solving -0.03 + x = -0.304795013 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.03' to each side of the equation. -0.03 + 0.03 + x = -0.304795013 + 0.03 Combine like terms: -0.03 + 0.03 = 0.00 0.00 + x = -0.304795013 + 0.03 x = -0.304795013 + 0.03 Combine like terms: -0.304795013 + 0.03 = -0.274795013 x = -0.274795013 Simplifying x = -0.274795013

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.334795013, -0.274795013}

See similar equations:

| -21-2e=7e-3 | | -12+4y=3y-2 | | 15-3b=8-5b | | 2=5-2g | | 14x^2-23x+6=0 | | 5e=20 | | 12x+36=9x | | (x+4)-81=0 | | 100x^2-6x-1.2=0 | | 16x^3+x=0 | | x^2+116x-64=0 | | A=(3x+2)(x-7) | | f(x)=(x-3)*(x^3-8x) | | 5x-3=10x-13 | | 0=(x-3)*(x^3-8x) | | x^3-12x^2+60x+100=0 | | 8m+5n-4m+7n= | | -3*sin(x)+9*sin(3x)=0 | | 3*cos(x)+3*cos(3x)=0 | | 24x+96=288 | | (3x+6)dx+(5y)dy=0 | | 4(2x-9)=12 | | 3dx=(2y^3-8)dy | | 2(2x+6)+3(x+5)=21 | | 4a-2b+c=2 | | z^2+(1-i)*z-i=0 | | 7x=3x-(x-20) | | 5x^2-2xy-2y^2+14x+10y-17=0 | | 29-3x=-28-8x | | 4x+133=10x-4 | | =1000 | | 18a/9 |

Equations solver categories