0.2x^2+3+8=x

Simple and best practice solution for 0.2x^2+3+8=x 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+3+8=x equation:


Simplifying
0.2x2 + 3 + 8 = x

Reorder the terms:
3 + 8 + 0.2x2 = x

Combine like terms: 3 + 8 = 11
11 + 0.2x2 = x

Solving
11 + 0.2x2 = x

Solving for variable 'x'.

Reorder the terms:
11 + -1x + 0.2x2 = x + -1x

Combine like terms: x + -1x = 0
11 + -1x + 0.2x2 = 0

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

Divide each side by '0.2'.
55 + -5x + x2 = 0

Move the constant term to the right:

Add '-55' to each side of the equation.
55 + -5x + -55 + x2 = 0 + -55

Reorder the terms:
55 + -55 + -5x + x2 = 0 + -55

Combine like terms: 55 + -55 = 0
0 + -5x + x2 = 0 + -55
-5x + x2 = 0 + -55

Combine like terms: 0 + -55 = -55
-5x + x2 = -55

The x term is -5x.  Take half its coefficient (-2.5).
Square it (6.25) and add it to both sides.

Add '6.25' to each side of the equation.
-5x + 6.25 + x2 = -55 + 6.25

Reorder the terms:
6.25 + -5x + x2 = -55 + 6.25

Combine like terms: -55 + 6.25 = -48.75
6.25 + -5x + x2 = -48.75

Factor a perfect square on the left side:
(x + -2.5)(x + -2.5) = -48.75

Can't calculate square root of the right side.

The solution to this equation could not be determined.

See similar equations:

| 5+5=4+x | | 4x-3=(2x+6)^1/2 | | 16x^2-9=2x+6 | | 4(x+5)(x+9)=0 | | 1x-3x= | | X+3(2x-5)=6 | | 7x-6=-21+4x | | 8r-9=6+5r | | X-2=49 | | a(a-3)=(a+4)-(a+1) | | 250m=15 | | 5/6m=85 | | -1/5n=35 | | 77p=-7.7 | | x-3(x-1)=2x-5 | | 5k=3t-3k/t | | 109300000*8/10 | | 5x-9(x-1)=2x-5 | | 1-x=15 | | 1x-x=15 | | Y=3-7x+2x^2 | | 25000.00x+13000.00=27500.00x | | 25000.00x+13000.00=27500 | | -10=2x | | 21=9x | | 25000.00x+13000.00=213000 | | 7(5x+1)=301/8 | | (2x+57)=(6x+5) | | 1/2(7x+8)=-55/2 | | c=7/6(k-95) | | 3(2x+2)/2 | | 22d^2+15d+2= |

Equations solver categories