48c^2+19c-21=

Simple and best practice solution for 48c^2+19c-21= 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 48c^2+19c-21= equation:


Simplifying
48c2 + 19c + -21 = 0

Reorder the terms:
-21 + 19c + 48c2 = 0

Solving
-21 + 19c + 48c2 = 0

Solving for variable 'c'.

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

Divide each side by '48'.
-0.4375 + 0.3958333333c + c2 = 0

Move the constant term to the right:

Add '0.4375' to each side of the equation.
-0.4375 + 0.3958333333c + 0.4375 + c2 = 0 + 0.4375

Reorder the terms:
-0.4375 + 0.4375 + 0.3958333333c + c2 = 0 + 0.4375

Combine like terms: -0.4375 + 0.4375 = 0.0000
0.0000 + 0.3958333333c + c2 = 0 + 0.4375
0.3958333333c + c2 = 0 + 0.4375

Combine like terms: 0 + 0.4375 = 0.4375
0.3958333333c + c2 = 0.4375

The c term is 0.3958333333c.  Take half its coefficient (0.1979166667).
Square it (0.03917100696) and add it to both sides.

Add '0.03917100696' to each side of the equation.
0.3958333333c + 0.03917100696 + c2 = 0.4375 + 0.03917100696

Reorder the terms:
0.03917100696 + 0.3958333333c + c2 = 0.4375 + 0.03917100696

Combine like terms: 0.4375 + 0.03917100696 = 0.47667100696
0.03917100696 + 0.3958333333c + c2 = 0.47667100696

Factor a perfect square on the left side:
(c + 0.1979166667)(c + 0.1979166667) = 0.47667100696

Calculate the square root of the right side: 0.690413649

Break this problem into two subproblems by setting 
(c + 0.1979166667) equal to 0.690413649 and -0.690413649.

Subproblem 1

c + 0.1979166667 = 0.690413649 Simplifying c + 0.1979166667 = 0.690413649 Reorder the terms: 0.1979166667 + c = 0.690413649 Solving 0.1979166667 + c = 0.690413649 Solving for variable 'c'. Move all terms containing c to the left, all other terms to the right. Add '-0.1979166667' to each side of the equation. 0.1979166667 + -0.1979166667 + c = 0.690413649 + -0.1979166667 Combine like terms: 0.1979166667 + -0.1979166667 = 0.0000000000 0.0000000000 + c = 0.690413649 + -0.1979166667 c = 0.690413649 + -0.1979166667 Combine like terms: 0.690413649 + -0.1979166667 = 0.4924969823 c = 0.4924969823 Simplifying c = 0.4924969823

Subproblem 2

c + 0.1979166667 = -0.690413649 Simplifying c + 0.1979166667 = -0.690413649 Reorder the terms: 0.1979166667 + c = -0.690413649 Solving 0.1979166667 + c = -0.690413649 Solving for variable 'c'. Move all terms containing c to the left, all other terms to the right. Add '-0.1979166667' to each side of the equation. 0.1979166667 + -0.1979166667 + c = -0.690413649 + -0.1979166667 Combine like terms: 0.1979166667 + -0.1979166667 = 0.0000000000 0.0000000000 + c = -0.690413649 + -0.1979166667 c = -0.690413649 + -0.1979166667 Combine like terms: -0.690413649 + -0.1979166667 = -0.8883303157 c = -0.8883303157 Simplifying c = -0.8883303157

Solution

The solution to the problem is based on the solutions from the subproblems. c = {0.4924969823, -0.8883303157}

See similar equations:

| 12x-8=11x+5 | | B^2+b=14 | | (-x+9)+(-x^2+x+4)= | | 3y-11=y+9 | | 16x=4x+84 | | -240=8xy | | 48x^2+22-15= | | -3(3.14)+x=2(3.14) | | 2t-12-t=60 | | 9x+4y=-4 | | 11y+9=7y+25 | | 0=-4.9x^2-48X+160 | | 9x=5x+60 | | 25+5x=9+3x | | 48c^2+19c-21=0 | | 10x+5-9x=11 | | 16-5x=1-2x | | 4(x+-2)=3x | | 6x+5y=8.15 | | -14y+13=13y-14 | | 4x=2x+70 | | f(x)=x^4+2x^2+4 | | x^2-6xy-40y^2= | | x-x-1=3 | | 4x^2-162x+234=0 | | 4x=2x+60 | | f=7i-188 | | 15x^5+20x^4-35x^3=0 | | 1.15a+8-0.4a=-17 | | 24x-22=4(6x-1) | | log(5x+2)=log(x+3)+log(3) | | f-i=3970 |

Equations solver categories