8r^2+26r+20=0

Simple and best practice solution for 8r^2+26r+20=0 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 8r^2+26r+20=0 equation:


Simplifying
8r2 + 26r + 20 = 0

Reorder the terms:
20 + 26r + 8r2 = 0

Solving
20 + 26r + 8r2 = 0

Solving for variable 'r'.

Factor out the Greatest Common Factor (GCF), '2'.
2(10 + 13r + 4r2) = 0

Factor a trinomial.
2((2 + r)(5 + 4r)) = 0

Ignore the factor 2.

Subproblem 1

Set the factor '(2 + r)' equal to zero and attempt to solve: Simplifying 2 + r = 0 Solving 2 + r = 0 Move all terms containing r to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + r = 0 + -2 Combine like terms: 2 + -2 = 0 0 + r = 0 + -2 r = 0 + -2 Combine like terms: 0 + -2 = -2 r = -2 Simplifying r = -2

Subproblem 2

Set the factor '(5 + 4r)' equal to zero and attempt to solve: Simplifying 5 + 4r = 0 Solving 5 + 4r = 0 Move all terms containing r to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + 4r = 0 + -5 Combine like terms: 5 + -5 = 0 0 + 4r = 0 + -5 4r = 0 + -5 Combine like terms: 0 + -5 = -5 4r = -5 Divide each side by '4'. r = -1.25 Simplifying r = -1.25

Solution

r = {-2, -1.25}

See similar equations:

| y-2/3w=20/3 | | 55=x-22 | | 5x-30*5=500 | | 13=182/x | | X-7x=8 | | a+25=-70 | | x-188=2037 | | 2v^2+3v-5=0 | | 49/x=7 | | 3+7x+2x=12 | | (X+16)=70 | | 225/x=15 | | 2/3w=20/3 | | -6x-18+12=312 | | (-3-5i)(-3+5i)=0 | | 10x-3y=56 | | (3g)(2)=34 | | 630=42x | | 128-x=99 | | x+2.35=8.51 | | -40x^2+16x^3=0 | | 3x-9+2=26 | | 13=-3x+x-9 | | 42=3y-9 | | 9(x-9)=0 | | 4x+8=200 | | 3(1[2y+8]1)=60 | | 3+3-3=33 | | -2-6x-10x^2=-19x^2 | | (-2+y)(-400)+(-300y)=0 | | -2x-6x-10x^2=-19x^2 | | f(m+2)=-3x+4 |

Equations solver categories