c^2-c-20=

Simple and best practice solution for c^2-c-20= 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-c-20= equation:


Simplifying
c2 + -1c + -20 = 0

Reorder the terms:
-20 + -1c + c2 = 0

Solving
-20 + -1c + c2 = 0

Solving for variable 'c'.

Factor a trinomial.
(-4 + -1c)(5 + -1c) = 0

Subproblem 1

Set the factor '(-4 + -1c)' equal to zero and attempt to solve: Simplifying -4 + -1c = 0 Solving -4 + -1c = 0 Move all terms containing c to the left, all other terms to the right. Add '4' to each side of the equation. -4 + 4 + -1c = 0 + 4 Combine like terms: -4 + 4 = 0 0 + -1c = 0 + 4 -1c = 0 + 4 Combine like terms: 0 + 4 = 4 -1c = 4 Divide each side by '-1'. c = -4 Simplifying c = -4

Subproblem 2

Set the factor '(5 + -1c)' equal to zero and attempt to solve: Simplifying 5 + -1c = 0 Solving 5 + -1c = 0 Move all terms containing c to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + -1c = 0 + -5 Combine like terms: 5 + -5 = 0 0 + -1c = 0 + -5 -1c = 0 + -5 Combine like terms: 0 + -5 = -5 -1c = -5 Divide each side by '-1'. c = 5 Simplifying c = 5

Solution

c = {-4, 5}

See similar equations:

| x^2-11x-10=8 | | 12a^2-24a+9= | | x^2-11x-10=0 | | (5x-3)(x-7)= | | (7+w)(3w-5)=0 | | c^2+3c-18= | | z+5=-7z-91 | | 16x^2+80x+84= | | (3x+8)(x+2)= | | 20x^2-31x+12=0 | | (x-16)2+(y-38)2=16 | | b^2+7b+6= | | 7-7y=124+6y | | 16p^2-52p+40= | | w^2-6w-2=0 | | 18x^2+75x+63= | | -8x-1=5x+6 | | 12x^2+24x-63= | | (x-1)(x-5)=5x+25 | | 24n^2+44n-8= | | 4x-1=6x-35 | | 18x^2-75x-75= | | -15x^2+3x+12=0 | | 6r-9r=24 | | 4st+6t-10s-15=0 | | (x-4)(x-2)= | | 82=4x+7(2x-14) | | 6r-15r=18 | | 8x^2+50x+12= | | 4x^2-4x+3=0 | | 8x^9y^7+32x^7y^6+40xy= | | (2t+1)(t+3)= |

Equations solver categories