2k^2=9+34k

Simple and best practice solution for 2k^2=9+34k 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 2k^2=9+34k equation:


Simplifying
2k2 = 9 + 34k

Solving
2k2 = 9 + 34k

Solving for variable 'k'.

Reorder the terms:
-9 + -34k + 2k2 = 9 + 34k + -9 + -34k

Reorder the terms:
-9 + -34k + 2k2 = 9 + -9 + 34k + -34k

Combine like terms: 9 + -9 = 0
-9 + -34k + 2k2 = 0 + 34k + -34k
-9 + -34k + 2k2 = 34k + -34k

Combine like terms: 34k + -34k = 0
-9 + -34k + 2k2 = 0

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

Divide each side by '2'.
-4.5 + -17k + k2 = 0

Move the constant term to the right:

Add '4.5' to each side of the equation.
-4.5 + -17k + 4.5 + k2 = 0 + 4.5

Reorder the terms:
-4.5 + 4.5 + -17k + k2 = 0 + 4.5

Combine like terms: -4.5 + 4.5 = 0.0
0.0 + -17k + k2 = 0 + 4.5
-17k + k2 = 0 + 4.5

Combine like terms: 0 + 4.5 = 4.5
-17k + k2 = 4.5

The k term is -17k.  Take half its coefficient (-8.5).
Square it (72.25) and add it to both sides.

Add '72.25' to each side of the equation.
-17k + 72.25 + k2 = 4.5 + 72.25

Reorder the terms:
72.25 + -17k + k2 = 4.5 + 72.25

Combine like terms: 4.5 + 72.25 = 76.75
72.25 + -17k + k2 = 76.75

Factor a perfect square on the left side:
(k + -8.5)(k + -8.5) = 76.75

Calculate the square root of the right side: 8.760707734

Break this problem into two subproblems by setting 
(k + -8.5) equal to 8.760707734 and -8.760707734.

Subproblem 1

k + -8.5 = 8.760707734 Simplifying k + -8.5 = 8.760707734 Reorder the terms: -8.5 + k = 8.760707734 Solving -8.5 + k = 8.760707734 Solving for variable 'k'. Move all terms containing k to the left, all other terms to the right. Add '8.5' to each side of the equation. -8.5 + 8.5 + k = 8.760707734 + 8.5 Combine like terms: -8.5 + 8.5 = 0.0 0.0 + k = 8.760707734 + 8.5 k = 8.760707734 + 8.5 Combine like terms: 8.760707734 + 8.5 = 17.260707734 k = 17.260707734 Simplifying k = 17.260707734

Subproblem 2

k + -8.5 = -8.760707734 Simplifying k + -8.5 = -8.760707734 Reorder the terms: -8.5 + k = -8.760707734 Solving -8.5 + k = -8.760707734 Solving for variable 'k'. Move all terms containing k to the left, all other terms to the right. Add '8.5' to each side of the equation. -8.5 + 8.5 + k = -8.760707734 + 8.5 Combine like terms: -8.5 + 8.5 = 0.0 0.0 + k = -8.760707734 + 8.5 k = -8.760707734 + 8.5 Combine like terms: -8.760707734 + 8.5 = -0.260707734 k = -0.260707734 Simplifying k = -0.260707734

Solution

The solution to the problem is based on the solutions from the subproblems. k = {17.260707734, -0.260707734}

See similar equations:

| .27(18)+.03x=.09(13+x) | | x(x+15)=-50 | | 0.35x+.25(2-x)=.3(-1) | | 4(1/6)+1(3/4)= | | 21.4=-.26x^2+3.62x+30.18 | | 4(1/6)+-1(3/4)= | | 2x-10=7x-25 | | 1.09(1.25)(5-x)=6 | | 2.4*1.3= | | 21*(-2/3)= | | 4n+6=58 | | 3(x^2+4)-15=3 | | 17x+17y=-19 | | 1.06(1.22)(6-x)=7 | | 14/(-2/3)= | | Log[4]3x-2=-1 | | -x^2-66x=0 | | 60(10+z+3)= | | 2x+y+4+8x+120=180 | | 12x+25=90 | | 3(1/3)-2(1/2)= | | 2(x+18)=18x | | X^2-x-9=y | | 4z-7z=19 | | 2x+y+4+8x+20=180 | | -3[x-7]+2=20 | | Y-4=2+5 | | x-(-15)=33 | | -3-(4-6p)= | | sin^2x-sinx=2 | | 7(8+y)= | | -5/7m-2-6/7m=-13 |

Equations solver categories