2r^2-5r=52

Simple and best practice solution for 2r^2-5r=52 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 2r^2-5r=52 equation:


Simplifying
2r2 + -5r = 52

Reorder the terms:
-5r + 2r2 = 52

Solving
-5r + 2r2 = 52

Solving for variable 'r'.

Reorder the terms:
-52 + -5r + 2r2 = 52 + -52

Combine like terms: 52 + -52 = 0
-52 + -5r + 2r2 = 0

Factor a trinomial.
(-4 + -1r)(13 + -2r) = 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 '(13 + -2r)' equal to zero and attempt to solve: Simplifying 13 + -2r = 0 Solving 13 + -2r = 0 Move all terms containing r to the left, all other terms to the right. Add '-13' to each side of the equation. 13 + -13 + -2r = 0 + -13 Combine like terms: 13 + -13 = 0 0 + -2r = 0 + -13 -2r = 0 + -13 Combine like terms: 0 + -13 = -13 -2r = -13 Divide each side by '-2'. r = 6.5 Simplifying r = 6.5

Solution

r = {-4, 6.5}

See similar equations:

| 2x^2+12x=18 | | 3x^2+38=0 | | 10p^2-24=3p | | 10y-8x=-76 | | 3x+2=5x-20 | | 77-4x=32x+21 | | 7y+6=69 | | 14(x-6)+4x=6(3x+2)-11 | | 14(x-6)+4x=6(3t+2)-11 | | a(x-b)=c | | -3x^2-9x+3=0 | | 8n^2+n+11=0 | | -(4x+1)-(-3x-5)=-3 | | -(4x+1)-(-3y-5)=-3 | | 8n^2+n=-11 | | 0.5x-3=17 | | 5(x^2-3)=5 | | 8y+8=64 | | 6r^2-9=3 | | G-5=-9 | | 2+-6=y | | a^2-10=50 | | 1x+5=13 | | -10x^2=-360 | | x-8.1=-6.9 | | x+33=24 | | n^2-3=46 | | 9y-1=80 | | 10x-2=-72 | | 10x+15=95 | | 5x+32=x | | n^2=46 |

Equations solver categories