3c^2+c-10=c^2-5

Simple and best practice solution for 3c^2+c-10=c^2-5 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 3c^2+c-10=c^2-5 equation:


Simplifying
3c2 + c + -10 = c2 + -5

Reorder the terms:
-10 + c + 3c2 = c2 + -5

Reorder the terms:
-10 + c + 3c2 = -5 + c2

Solving
-10 + c + 3c2 = -5 + c2

Solving for variable 'c'.

Reorder the terms:
-10 + 5 + c + 3c2 + -1c2 = -5 + c2 + 5 + -1c2

Combine like terms: -10 + 5 = -5
-5 + c + 3c2 + -1c2 = -5 + c2 + 5 + -1c2

Combine like terms: 3c2 + -1c2 = 2c2
-5 + c + 2c2 = -5 + c2 + 5 + -1c2

Reorder the terms:
-5 + c + 2c2 = -5 + 5 + c2 + -1c2

Combine like terms: -5 + 5 = 0
-5 + c + 2c2 = 0 + c2 + -1c2
-5 + c + 2c2 = c2 + -1c2

Combine like terms: c2 + -1c2 = 0
-5 + c + 2c2 = 0

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

Divide each side by '2'.
-2.5 + 0.5c + c2 = 0

Move the constant term to the right:

Add '2.5' to each side of the equation.
-2.5 + 0.5c + 2.5 + c2 = 0 + 2.5

Reorder the terms:
-2.5 + 2.5 + 0.5c + c2 = 0 + 2.5

Combine like terms: -2.5 + 2.5 = 0.0
0.0 + 0.5c + c2 = 0 + 2.5
0.5c + c2 = 0 + 2.5

Combine like terms: 0 + 2.5 = 2.5
0.5c + c2 = 2.5

The c term is c.  Take half its coefficient (0.5).
Square it (0.25) and add it to both sides.

Add '0.25' to each side of the equation.
0.5c + 0.25 + c2 = 2.5 + 0.25

Reorder the terms:
0.25 + 0.5c + c2 = 2.5 + 0.25

Combine like terms: 2.5 + 0.25 = 2.75
0.25 + 0.5c + c2 = 2.75

Factor a perfect square on the left side:
(c + 0.5)(c + 0.5) = 2.75

Calculate the square root of the right side: 1.658312395

Break this problem into two subproblems by setting 
(c + 0.5) equal to 1.658312395 and -1.658312395.

Subproblem 1

c + 0.5 = 1.658312395 Simplifying c + 0.5 = 1.658312395 Reorder the terms: 0.5 + c = 1.658312395 Solving 0.5 + c = 1.658312395 Solving for variable 'c'. Move all terms containing c to the left, all other terms to the right. Add '-0.5' to each side of the equation. 0.5 + -0.5 + c = 1.658312395 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + c = 1.658312395 + -0.5 c = 1.658312395 + -0.5 Combine like terms: 1.658312395 + -0.5 = 1.158312395 c = 1.158312395 Simplifying c = 1.158312395

Subproblem 2

c + 0.5 = -1.658312395 Simplifying c + 0.5 = -1.658312395 Reorder the terms: 0.5 + c = -1.658312395 Solving 0.5 + c = -1.658312395 Solving for variable 'c'. Move all terms containing c to the left, all other terms to the right. Add '-0.5' to each side of the equation. 0.5 + -0.5 + c = -1.658312395 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + c = -1.658312395 + -0.5 c = -1.658312395 + -0.5 Combine like terms: -1.658312395 + -0.5 = -2.158312395 c = -2.158312395 Simplifying c = -2.158312395

Solution

The solution to the problem is based on the solutions from the subproblems. c = {1.158312395, -2.158312395}

See similar equations:

| -2x+34=-6(8-7x)-3x | | -2x=24 | | 25y^2=45 | | 5x=-7 | | -5(-4+5v)=-6v-37 | | 15-x=9 | | 4n-7=-(n-8) | | 9x^2-729=0 | | 8-8x=90x-22 | | 9-3x=-2x+8 | | -8x^2+128=0 | | 8m+6=3(m+2) | | 7x+14=2x+149 | | 5+6x=-6x+113 | | 0=-10v^2+13v+3 | | 3x-7=-1+6x | | 2(8+4k)=3k-4 | | -2x+1=-5x+31 | | 4(8-6x)=5x-26 | | 5x^2+75x+270=0 | | x+8=-16+4x | | 32+6x=8(x+3) | | 2(5x-25)=10(x-5) | | 6+3x=-3x-6 | | -7x^2-64+112=0 | | -9+5x=3x+9 | | 2(7v+7)=28+7v | | 7-7x=2x+7 | | 11x^2-37x=0 | | 2(1-2n)=2n+8 | | -9+2x=4x-17 | | 18x^2+3x-10=0 |

Equations solver categories