0.3k(k-0.2)=0.6

Simple and best practice solution for 0.3k(k-0.2)=0.6 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 0.3k(k-0.2)=0.6 equation:


Simplifying
0.3k(k + -0.2) = 0.6

Reorder the terms:
0.3k(-0.2 + k) = 0.6
(-0.2 * 0.3k + k * 0.3k) = 0.6
(-0.06k + 0.3k2) = 0.6

Solving
-0.06k + 0.3k2 = 0.6

Solving for variable 'k'.

Reorder the terms:
-0.6 + -0.06k + 0.3k2 = 0.6 + -0.6

Combine like terms: 0.6 + -0.6 = 0.0
-0.6 + -0.06k + 0.3k2 = 0.0

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

Divide each side by '0.3'.
-2 + -0.2k + k2 = 0

Move the constant term to the right:

Add '2' to each side of the equation.
-2 + -0.2k + 2 + k2 = 0 + 2

Reorder the terms:
-2 + 2 + -0.2k + k2 = 0 + 2

Combine like terms: -2 + 2 = 0
0 + -0.2k + k2 = 0 + 2
-0.2k + k2 = 0 + 2

Combine like terms: 0 + 2 = 2
-0.2k + k2 = 2

The k term is -0.2k.  Take half its coefficient (-0.1).
Square it (0.01) and add it to both sides.

Add '0.01' to each side of the equation.
-0.2k + 0.01 + k2 = 2 + 0.01

Reorder the terms:
0.01 + -0.2k + k2 = 2 + 0.01

Combine like terms: 2 + 0.01 = 2.01
0.01 + -0.2k + k2 = 2.01

Factor a perfect square on the left side:
(k + -0.1)(k + -0.1) = 2.01

Calculate the square root of the right side: 1.417744688

Break this problem into two subproblems by setting 
(k + -0.1) equal to 1.417744688 and -1.417744688.

Subproblem 1

k + -0.1 = 1.417744688 Simplifying k + -0.1 = 1.417744688 Reorder the terms: -0.1 + k = 1.417744688 Solving -0.1 + k = 1.417744688 Solving for variable 'k'. Move all terms containing k to the left, all other terms to the right. Add '0.1' to each side of the equation. -0.1 + 0.1 + k = 1.417744688 + 0.1 Combine like terms: -0.1 + 0.1 = 0.0 0.0 + k = 1.417744688 + 0.1 k = 1.417744688 + 0.1 Combine like terms: 1.417744688 + 0.1 = 1.517744688 k = 1.517744688 Simplifying k = 1.517744688

Subproblem 2

k + -0.1 = -1.417744688 Simplifying k + -0.1 = -1.417744688 Reorder the terms: -0.1 + k = -1.417744688 Solving -0.1 + k = -1.417744688 Solving for variable 'k'. Move all terms containing k to the left, all other terms to the right. Add '0.1' to each side of the equation. -0.1 + 0.1 + k = -1.417744688 + 0.1 Combine like terms: -0.1 + 0.1 = 0.0 0.0 + k = -1.417744688 + 0.1 k = -1.417744688 + 0.1 Combine like terms: -1.417744688 + 0.1 = -1.317744688 k = -1.317744688 Simplifying k = -1.317744688

Solution

The solution to the problem is based on the solutions from the subproblems. k = {1.517744688, -1.317744688}

See similar equations:

| 4x+4x+36-5x+36-5x=m | | 3y-(4x)= | | 3.9/5=x/90 | | 80=d+8 | | -8(6x-5)= | | 9x^2-x^3=98 | | 33=n-51 | | -2(5y-5)= | | x-23=-5 | | 4x*2=y | | g+98=109 | | (2x+1)(x+4)=3(x^2-4) | | (4x)2+(36-5x)=y | | 3x-59=25 | | 1.39x=12.51 | | 4n-4=-112 | | 2w+9=k | | (1/12)*6 | | n-18=17 | | g/2=2/8 | | 2x(z-12)-1=z-25+2 | | 8e+17= | | a-6=3 | | t/5=5/125 | | 110=1550-90w | | 2(x+y)=122 | | t-3=25-t | | 83=65+y | | -9x-10y=10 | | 3/2=k/16 | | 2(14h-13)=37+13h | | .5x+12=2x+18 |

Equations solver categories