30+r-r^2=

Simple and best practice solution for 30+r-r^2= 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 30+r-r^2= equation:


Simplifying
30 + r + -1r2 = 0

Solving
30 + r + -1r2 = 0

Solving for variable 'r'.

Factor a trinomial.
(6 + -1r)(5 + r) = 0

Subproblem 1

Set the factor '(6 + -1r)' equal to zero and attempt to solve: Simplifying 6 + -1r = 0 Solving 6 + -1r = 0 Move all terms containing r to the left, all other terms to the right. Add '-6' to each side of the equation. 6 + -6 + -1r = 0 + -6 Combine like terms: 6 + -6 = 0 0 + -1r = 0 + -6 -1r = 0 + -6 Combine like terms: 0 + -6 = -6 -1r = -6 Divide each side by '-1'. r = 6 Simplifying r = 6

Subproblem 2

Set the factor '(5 + r)' equal to zero and attempt to solve: Simplifying 5 + r = 0 Solving 5 + r = 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 + r = 0 + -5 Combine like terms: 5 + -5 = 0 0 + r = 0 + -5 r = 0 + -5 Combine like terms: 0 + -5 = -5 r = -5 Simplifying r = -5

Solution

r = {6, -5}

See similar equations:

| X-6+5-2=7 | | 14x-2x+7=2x+17 | | 40+15m=160 | | y^2=12x-4 | | 23n-24=160 | | 7x+5y=-2 | | 52=35x+b | | t^2+13t-90= | | x-21.35=-6.35 | | 2(x+7)=5(2x-3) | | 8x-14=6x-20 | | 7a^2_12a_8=0/ | | -5/4-4/5-5/4-5 | | x^2-5x-725=0 | | 10x/2=0 | | x^2+34x-60=0 | | b^2+b-42= | | 5-(2-2-x)=10 | | 15/10=3/x | | 2b-48+b^2= | | ln(5x)/ln(5/x) | | X+2X-4=17 | | r^3-2r^2-63= | | 4p^2-100/p^2-2x-35 | | S^3-3s^2-40= | | -3p+2(5p-12)=-73 | | 9m-3n=45 | | 4m-2n=15 | | (.4*x)-(.2*x)=.46 | | V^2+v+28= | | -5+-2(5t+10)=100 | | (7+10-x)-4=6 |

Equations solver categories