0.2x^2-0.4X-2.1=0

Simple and best practice solution for 0.2x^2-0.4X-2.1=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 0.2x^2-0.4X-2.1=0 equation: 


Simplifying
0.2x2 + -0.4X + -2.1 = 0

Reorder the terms:
-2.1 + -0.4X + 0.2x2 = 0

Solving
-2.1 + -0.4X + 0.2x2 = 0

Solving for variable 'X'.

Move all terms containing X to the left, all other terms to the right.

Add '2.1' to each side of the equation.
-2.1 + -0.4X + 2.1 + 0.2x2 = 0 + 2.1

Reorder the terms:
-2.1 + 2.1 + -0.4X + 0.2x2 = 0 + 2.1

Combine like terms: -2.1 + 2.1 = 0.0
0.0 + -0.4X + 0.2x2 = 0 + 2.1
-0.4X + 0.2x2 = 0 + 2.1

Combine like terms: 0 + 2.1 = 2.1
-0.4X + 0.2x2 = 2.1

Add '-0.2x2' to each side of the equation.
-0.4X + 0.2x2 + -0.2x2 = 2.1 + -0.2x2

Combine like terms: 0.2x2 + -0.2x2 = 0.0
-0.4X + 0.0 = 2.1 + -0.2x2
-0.4X = 2.1 + -0.2x2

Divide each side by '-0.4'.
X = -5.25 + 0.5x2

Simplifying
X = -5.25 + 0.5x2

See similar equations:

| (-8-5)(-2+1)=39 | | 0.5x^2+11X+3.5=0 | | 5g-8=g | | 3(2w+1)=15 | | 3(2w+1)=27 | | 2(2r-1)=5 | | 3(p+2)=3 | | 6(3g-7)=12 | | 2(p-2)=9 | | Z^4-4z^2-16z-16=0 | | 2cos^3(x)-7cos^2(x)+3cos(x)=0 | | 4d-8=42 | | 2e=14 | | 28+x=42 | | K-2=3 | | 6x-13x^1/2+2 | | 5(2y-3)/3y=3 | | 4+36=14x-54 | | 2a+8b+7a-7+3b= | | 12-7e+f= | | (x^2+4)(x^3-27i)=0 | | 3x(x-2)= | | 14m+7n-3m+4= | | 5p-4(p+7)=10 | | 14x+17=6x+185 | | 5m+4a=3m+7a | | 108-3x=24x+24x+18 | | -5n+15=8-4n | | (n-9)*7=14 | | (n-9)+2=10 | | 4x+157=11x-11 | | 6x+20=4x+172 |

Equations solver categories