8k^2+4k-3k^2-k+5=

Simple and best practice solution for 8k^2+4k-3k^2-k+5= 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 8k^2+4k-3k^2-k+5= equation:


Simplifying
8k2 + 4k + -3k2 + -1k + 5 = 0

Reorder the terms:
5 + 4k + -1k + 8k2 + -3k2 = 0

Combine like terms: 4k + -1k = 3k
5 + 3k + 8k2 + -3k2 = 0

Combine like terms: 8k2 + -3k2 = 5k2
5 + 3k + 5k2 = 0

Solving
5 + 3k + 5k2 = 0

Solving for variable 'k'.

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

Divide each side by '5'.
1 + 0.6k + k2 = 0

Move the constant term to the right:

Add '-1' to each side of the equation.
1 + 0.6k + -1 + k2 = 0 + -1

Reorder the terms:
1 + -1 + 0.6k + k2 = 0 + -1

Combine like terms: 1 + -1 = 0
0 + 0.6k + k2 = 0 + -1
0.6k + k2 = 0 + -1

Combine like terms: 0 + -1 = -1
0.6k + k2 = -1

The k term is 0.6k.  Take half its coefficient (0.3).
Square it (0.09) and add it to both sides.

Add '0.09' to each side of the equation.
0.6k + 0.09 + k2 = -1 + 0.09

Reorder the terms:
0.09 + 0.6k + k2 = -1 + 0.09

Combine like terms: -1 + 0.09 = -0.91
0.09 + 0.6k + k2 = -0.91

Factor a perfect square on the left side:
(k + 0.3)(k + 0.3) = -0.91

Can't calculate square root of the right side.

The solution to this equation could not be determined.

See similar equations:

| 1/51/6-2/3x | | -17=-5u-14 | | 296.8-248.36= | | 15x+8=38 | | 3(2b-6)=4b-8 | | 3r^2-6k+3=3 | | 12n-4=7 | | 9/40-3/5x1/2 | | 4.9t-4.1=5.7 | | (2n+5)-(3n+7)+(4n-9)= | | z+51+6z+80=180 | | =6n-5(n+1) | | 20x+d=5cx+3c | | -5ab+7ab+(-9ab)+ab+(-2ab)= | | 6/27=8/x | | 2/9=x/27 | | 25b^2-30b-40=0 | | 6.41x+25=41.0881+5x | | 4x^2-54=-38 | | (554.17*12*30)-(758.89*12*15)= | | 4x^2-54=-38 | | 25x^3=64x | | 2(5x-4)+1=19 | | 1+/7=-3 | | sin^2x-3sinx=4 | | x-8=(-32) | | 4(x+9)=2x+44 | | 9x^3-12x^2+4=0 | | J-42.5+15=125.95 | | 3.89x+27.23=54.46 | | 42.5-J+15=125.95 | | 7/21=x/24 |

Equations solver categories