0.2x^2=1.2x+.2

Simple and best practice solution for 0.2x^2=1.2x+.2 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=1.2x+.2 equation:


Simplifying
0.2x2 = 1.2x + 0.2

Reorder the terms:
0.2x2 = 0.2 + 1.2x

Solving
0.2x2 = 0.2 + 1.2x

Solving for variable 'x'.

Reorder the terms:
-0.2 + -1.2x + 0.2x2 = 0.2 + 1.2x + -0.2 + -1.2x

Reorder the terms:
-0.2 + -1.2x + 0.2x2 = 0.2 + -0.2 + 1.2x + -1.2x

Combine like terms: 0.2 + -0.2 = 0.0
-0.2 + -1.2x + 0.2x2 = 0.0 + 1.2x + -1.2x
-0.2 + -1.2x + 0.2x2 = 1.2x + -1.2x

Combine like terms: 1.2x + -1.2x = 0.0
-0.2 + -1.2x + 0.2x2 = 0.0

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

Divide each side by '0.2'.
-1 + -6x + x2 = 0

Move the constant term to the right:

Add '1' to each side of the equation.
-1 + -6x + 1 + x2 = 0 + 1

Reorder the terms:
-1 + 1 + -6x + x2 = 0 + 1

Combine like terms: -1 + 1 = 0
0 + -6x + x2 = 0 + 1
-6x + x2 = 0 + 1

Combine like terms: 0 + 1 = 1
-6x + x2 = 1

The x term is -6x.  Take half its coefficient (-3).
Square it (9) and add it to both sides.

Add '9' to each side of the equation.
-6x + 9 + x2 = 1 + 9

Reorder the terms:
9 + -6x + x2 = 1 + 9

Combine like terms: 1 + 9 = 10
9 + -6x + x2 = 10

Factor a perfect square on the left side:
(x + -3)(x + -3) = 10

Calculate the square root of the right side: 3.16227766

Break this problem into two subproblems by setting 
(x + -3) equal to 3.16227766 and -3.16227766.

Subproblem 1

x + -3 = 3.16227766 Simplifying x + -3 = 3.16227766 Reorder the terms: -3 + x = 3.16227766 Solving -3 + x = 3.16227766 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '3' to each side of the equation. -3 + 3 + x = 3.16227766 + 3 Combine like terms: -3 + 3 = 0 0 + x = 3.16227766 + 3 x = 3.16227766 + 3 Combine like terms: 3.16227766 + 3 = 6.16227766 x = 6.16227766 Simplifying x = 6.16227766

Subproblem 2

x + -3 = -3.16227766 Simplifying x + -3 = -3.16227766 Reorder the terms: -3 + x = -3.16227766 Solving -3 + x = -3.16227766 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '3' to each side of the equation. -3 + 3 + x = -3.16227766 + 3 Combine like terms: -3 + 3 = 0 0 + x = -3.16227766 + 3 x = -3.16227766 + 3 Combine like terms: -3.16227766 + 3 = -0.16227766 x = -0.16227766 Simplifying x = -0.16227766

Solution

The solution to the problem is based on the solutions from the subproblems. x = {6.16227766, -0.16227766}

See similar equations:

| g+3=6g | | -(4n-7)=-15+7n | | 3000=50h+275h | | 49.50x=42916 | | .5(5x-5)=8 | | 49.50=42916 | | 49.50=42916.5 | | 24=2x-3 | | p+16=s | | x(x+8)=-23 | | -0.8x+5.46=-0.3x+8.96 | | -0.3x+5.82=-0.5x+7.22 | | 0.5x+14.4=x-6.4 | | x+5-20+-3x=50 | | x+5-20+3x=50 | | 4(3x-2.4)=4x-9.6 | | 7+7(x+6)=39-3x | | 2x+7xy-76=13 | | x+2/9=45 | | -(x+2)=2+3x | | 42q-26=62q-66 | | -7/10=y-1/3 | | 20/5(2*2)=x | | -(x+2)=2+2x | | 20/5(2*2)= | | 2f(2)= | | 0.15v=4.5 | | 0.15v=7.2 | | x*(x+6)=216 | | -6(6+2x)-8x=84 | | 13=17-log(x+3) | | 16x+32=16x+12+20 |

Equations solver categories