c^2-4c=10

Simple and best practice solution for c^2-4c=10 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 c^2-4c=10 equation:


Simplifying
c2 + -4c = 10

Reorder the terms:
-4c + c2 = 10

Solving
-4c + c2 = 10

Solving for variable 'c'.

Reorder the terms:
-10 + -4c + c2 = 10 + -10

Combine like terms: 10 + -10 = 0
-10 + -4c + c2 = 0

Begin completing the square.

Move the constant term to the right:

Add '10' to each side of the equation.
-10 + -4c + 10 + c2 = 0 + 10

Reorder the terms:
-10 + 10 + -4c + c2 = 0 + 10

Combine like terms: -10 + 10 = 0
0 + -4c + c2 = 0 + 10
-4c + c2 = 0 + 10

Combine like terms: 0 + 10 = 10
-4c + c2 = 10

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

Add '4' to each side of the equation.
-4c + 4 + c2 = 10 + 4

Reorder the terms:
4 + -4c + c2 = 10 + 4

Combine like terms: 10 + 4 = 14
4 + -4c + c2 = 14

Factor a perfect square on the left side:
(c + -2)(c + -2) = 14

Calculate the square root of the right side: 3.741657387

Break this problem into two subproblems by setting 
(c + -2) equal to 3.741657387 and -3.741657387.

Subproblem 1

c + -2 = 3.741657387 Simplifying c + -2 = 3.741657387 Reorder the terms: -2 + c = 3.741657387 Solving -2 + c = 3.741657387 Solving for variable 'c'. Move all terms containing c to the left, all other terms to the right. Add '2' to each side of the equation. -2 + 2 + c = 3.741657387 + 2 Combine like terms: -2 + 2 = 0 0 + c = 3.741657387 + 2 c = 3.741657387 + 2 Combine like terms: 3.741657387 + 2 = 5.741657387 c = 5.741657387 Simplifying c = 5.741657387

Subproblem 2

c + -2 = -3.741657387 Simplifying c + -2 = -3.741657387 Reorder the terms: -2 + c = -3.741657387 Solving -2 + c = -3.741657387 Solving for variable 'c'. Move all terms containing c to the left, all other terms to the right. Add '2' to each side of the equation. -2 + 2 + c = -3.741657387 + 2 Combine like terms: -2 + 2 = 0 0 + c = -3.741657387 + 2 c = -3.741657387 + 2 Combine like terms: -3.741657387 + 2 = -1.741657387 c = -1.741657387 Simplifying c = -1.741657387

Solution

The solution to the problem is based on the solutions from the subproblems. c = {5.741657387, -1.741657387}

See similar equations:

| 4x-2(3+7)=-10-6 | | 60=2(3a+10) | | x^2-20x-56=0 | | 33x+6-7x=-46 | | v+9=4v | | x^4-1x^2-90=0 | | X-1/2x-2=2 | | c-65=-20 | | 3(w+1)+2w=5(w+-1)+5 | | -70=5(-4+6k) | | 3w+1+2w=5(w-1)+5 | | 3x^2+27x=-60 | | y+2=6(x-7) | | 2z(x+1)=3x-3 | | 2x*4x=0 | | c=3.14r+2 | | 7x+3+2x+5=180 | | p^2-14p+13=0 | | x+5=80 | | 42=-6(5n-7) | | x^2+2px+2p-2=0 | | logz+12= | | 0.7x=-45 | | 15x^2=-20x | | 115x^2=-20x | | 7x-2=38 | | 1.2(4x+3)= | | 8y+24x=16 | | 40=5+5(-5-8) | | 7y=x+6 | | 2y-5=6x+3 | | b^2-12b-14=0 |

Equations solver categories