4c^2+9c-7+12c^2-5c+5+c-2=

Simple and best practice solution for 4c^2+9c-7+12c^2-5c+5+c-2= 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 4c^2+9c-7+12c^2-5c+5+c-2= equation:


Simplifying
4c2 + 9c + -7 + 12c2 + -5c + 5 + c + -2 = 0

Reorder the terms:
-7 + 5 + -2 + 9c + -5c + c + 4c2 + 12c2 = 0

Combine like terms: -7 + 5 = -2
-2 + -2 + 9c + -5c + c + 4c2 + 12c2 = 0

Combine like terms: -2 + -2 = -4
-4 + 9c + -5c + c + 4c2 + 12c2 = 0

Combine like terms: 9c + -5c = 4c
-4 + 4c + c + 4c2 + 12c2 = 0

Combine like terms: 4c + c = 5c
-4 + 5c + 4c2 + 12c2 = 0

Combine like terms: 4c2 + 12c2 = 16c2
-4 + 5c + 16c2 = 0

Solving
-4 + 5c + 16c2 = 0

Solving for variable 'c'.

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

Divide each side by '16'.
-0.25 + 0.3125c + c2 = 0

Move the constant term to the right:

Add '0.25' to each side of the equation.
-0.25 + 0.3125c + 0.25 + c2 = 0 + 0.25

Reorder the terms:
-0.25 + 0.25 + 0.3125c + c2 = 0 + 0.25

Combine like terms: -0.25 + 0.25 = 0.00
0.00 + 0.3125c + c2 = 0 + 0.25
0.3125c + c2 = 0 + 0.25

Combine like terms: 0 + 0.25 = 0.25
0.3125c + c2 = 0.25

The c term is 0.3125c.  Take half its coefficient (0.15625).
Square it (0.0244140625) and add it to both sides.

Add '0.0244140625' to each side of the equation.
0.3125c + 0.0244140625 + c2 = 0.25 + 0.0244140625

Reorder the terms:
0.0244140625 + 0.3125c + c2 = 0.25 + 0.0244140625

Combine like terms: 0.25 + 0.0244140625 = 0.2744140625
0.0244140625 + 0.3125c + c2 = 0.2744140625

Factor a perfect square on the left side:
(c + 0.15625)(c + 0.15625) = 0.2744140625

Calculate the square root of the right side: 0.523845457

Break this problem into two subproblems by setting 
(c + 0.15625) equal to 0.523845457 and -0.523845457.

Subproblem 1

c + 0.15625 = 0.523845457 Simplifying c + 0.15625 = 0.523845457 Reorder the terms: 0.15625 + c = 0.523845457 Solving 0.15625 + c = 0.523845457 Solving for variable 'c'. Move all terms containing c to the left, all other terms to the right. Add '-0.15625' to each side of the equation. 0.15625 + -0.15625 + c = 0.523845457 + -0.15625 Combine like terms: 0.15625 + -0.15625 = 0.00000 0.00000 + c = 0.523845457 + -0.15625 c = 0.523845457 + -0.15625 Combine like terms: 0.523845457 + -0.15625 = 0.367595457 c = 0.367595457 Simplifying c = 0.367595457

Subproblem 2

c + 0.15625 = -0.523845457 Simplifying c + 0.15625 = -0.523845457 Reorder the terms: 0.15625 + c = -0.523845457 Solving 0.15625 + c = -0.523845457 Solving for variable 'c'. Move all terms containing c to the left, all other terms to the right. Add '-0.15625' to each side of the equation. 0.15625 + -0.15625 + c = -0.523845457 + -0.15625 Combine like terms: 0.15625 + -0.15625 = 0.00000 0.00000 + c = -0.523845457 + -0.15625 c = -0.523845457 + -0.15625 Combine like terms: -0.523845457 + -0.15625 = -0.680095457 c = -0.680095457 Simplifying c = -0.680095457

Solution

The solution to the problem is based on the solutions from the subproblems. c = {0.367595457, -0.680095457}

See similar equations:

| x-(-9.9)= | | 6x=-4/5 | | 12x+5y=-20 | | X^2+12x+9=-5 | | 8z=112 | | X-18x+32=0 | | 273.96=9(0.05m+24.90+0.10(24.90)) | | 3-7=7-3 | | 5x+(48+7)x=12(x+4) | | 5x+19=31-6x | | 3x+1+x=9+-4x+-10 | | 8b+7+6x-4=5c+8 | | 5(x+4)-6x=4(3x+1)-9x | | X-1/3=5/18 | | K^2+4k-16=0 | | 4a^3+4a^2-48a=0 | | 14/25*(-3/7) | | z^2+60775=1000z | | (m-n+k)(m+7n-9k)= | | 2(x+4)+-3=2x+-1 | | -1+y=14 | | x^4-5x^3+x^2+21x-18=0 | | 1+8x+9=-2+2x | | 6.7=y-43/4 | | log(8)6x-4=4 | | 5p+6=-4p+8 | | -.5y+6=2 | | 12f-15=81 | | 3(1.2b-1)-5a=4.2 | | 5x+(48+7)=12(x+4) | | 5x+1-8x-8=8x-11x-10 | | (3x+50)= |

Equations solver categories