3r^2+10r-8=

Simple and best practice solution for 3r^2+10r-8= 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 3r^2+10r-8= equation:


Simplifying
3r2 + 10r + -8 = 0

Reorder the terms:
-8 + 10r + 3r2 = 0

Solving
-8 + 10r + 3r2 = 0

Solving for variable 'r'.

Factor a trinomial.
(-4 + -1r)(2 + -3r) = 0

Subproblem 1

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

Subproblem 2

Set the factor '(2 + -3r)' equal to zero and attempt to solve: Simplifying 2 + -3r = 0 Solving 2 + -3r = 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 + -3r = 0 + -2 Combine like terms: 2 + -2 = 0 0 + -3r = 0 + -2 -3r = 0 + -2 Combine like terms: 0 + -2 = -2 -3r = -2 Divide each side by '-3'. r = 0.6666666667 Simplifying r = 0.6666666667

Solution

r = {-4, 0.6666666667}

See similar equations:

| -3t+4t^2-7= | | (x^3)+4x=0 | | 5a=2a+g | | 42a^2-43a+6= | | 25x^2-60xy+36y^2= | | 20u^2-54uv+36v^2=0 | | log(9-2x)=2 | | 1x+16x^2+x^4= | | 54a^2+39ab-8b^2= | | 7x(-8-x+7)=100 | | 3x-(x+2)=10 | | 1080=180(x-2) | | 573=32m+39 | | y+8y^2-9= | | (10m+7)-(5m-8)= | | (a-3)(a-4)=2 | | 15=14-3 | | 8(z+2)=-4(z+2) | | x=180(1080-2) | | 9q^4-42q^3+49q^2= | | -2x-(x-1)=10x | | 20-0.36=x | | 2x+3y+4x+7= | | G=-2+-5+8 | | 3x-11=5x+21 | | 4(x-10)=2(x-2) | | x+152=4x-43 | | 42x^4-99x^3y-15x^2y^2= | | ln(3x+2)=1.8 | | ln(3x)=1.8 | | x^2+13x+50=10 | | 12x^3-34x^2+24x= |

Equations solver categories