k^2+4k-53=0

Simple and best practice solution for k^2+4k-53=0 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 k^2+4k-53=0 equation:


Simplifying
k2 + 4k + -53 = 0

Reorder the terms:
-53 + 4k + k2 = 0

Solving
-53 + 4k + k2 = 0

Solving for variable 'k'.

Begin completing the square.

Move the constant term to the right:

Add '53' to each side of the equation.
-53 + 4k + 53 + k2 = 0 + 53

Reorder the terms:
-53 + 53 + 4k + k2 = 0 + 53

Combine like terms: -53 + 53 = 0
0 + 4k + k2 = 0 + 53
4k + k2 = 0 + 53

Combine like terms: 0 + 53 = 53
4k + k2 = 53

The k term is 4k.  Take half its coefficient (2).
Square it (4) and add it to both sides.

Add '4' to each side of the equation.
4k + 4 + k2 = 53 + 4

Reorder the terms:
4 + 4k + k2 = 53 + 4

Combine like terms: 53 + 4 = 57
4 + 4k + k2 = 57

Factor a perfect square on the left side:
(k + 2)(k + 2) = 57

Calculate the square root of the right side: 7.549834435

Break this problem into two subproblems by setting 
(k + 2) equal to 7.549834435 and -7.549834435.

Subproblem 1

k + 2 = 7.549834435 Simplifying k + 2 = 7.549834435 Reorder the terms: 2 + k = 7.549834435 Solving 2 + k = 7.549834435 Solving for variable 'k'. Move all terms containing k to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + k = 7.549834435 + -2 Combine like terms: 2 + -2 = 0 0 + k = 7.549834435 + -2 k = 7.549834435 + -2 Combine like terms: 7.549834435 + -2 = 5.549834435 k = 5.549834435 Simplifying k = 5.549834435

Subproblem 2

k + 2 = -7.549834435 Simplifying k + 2 = -7.549834435 Reorder the terms: 2 + k = -7.549834435 Solving 2 + k = -7.549834435 Solving for variable 'k'. Move all terms containing k to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + k = -7.549834435 + -2 Combine like terms: 2 + -2 = 0 0 + k = -7.549834435 + -2 k = -7.549834435 + -2 Combine like terms: -7.549834435 + -2 = -9.549834435 k = -9.549834435 Simplifying k = -9.549834435

Solution

The solution to the problem is based on the solutions from the subproblems. k = {5.549834435, -9.549834435}

See similar equations:

| (x-1)*2=3+x | | 5=3y+2y | | 6k=-8k+14 | | k^2+14k-88=0 | | 4d+29d-60=0 | | (0.5-2)(0.4+6)=0 | | 2-(3x-3)=50 | | x^2-8-21=0 | | 6x^2-18=12x | | 6k^2-18=12x | | 4d^2+29-60=0 | | 2(3x-1)+2(4x+5)=64 | | -1/11x-7/9=-5 | | X=-4ln(y+2) | | 8(20+7y)-9x=-70 | | (2x+y)dy-(x-2y)dx=0 | | 6(w-4)=8w-36 | | 7y+13=5y+4 | | 21=5y+2y | | 2x=-5x-2/11 | | m^2+2m-29=0 | | f(5)=3x+1 | | -5(3-z)=x+1 | | 24=2y+4y | | 2m^2=16 | | (8j+3)(j-2)=0 | | 15x-2y=44 | | 11a*2-18a= | | 11-u=157 | | 8-(-4)+5= | | m^2+4m-89=0 | | k^2-10k-17=0 |

Equations solver categories