If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying r2 = -15 + -8r Solving r2 = -15 + -8r Solving for variable 'r'. Reorder the terms: 15 + 8r + r2 = -15 + -8r + 15 + 8r Reorder the terms: 15 + 8r + r2 = -15 + 15 + -8r + 8r Combine like terms: -15 + 15 = 0 15 + 8r + r2 = 0 + -8r + 8r 15 + 8r + r2 = -8r + 8r Combine like terms: -8r + 8r = 0 15 + 8r + r2 = 0 Factor a trinomial. (5 + r)(3 + r) = 0Subproblem 1
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 = -5Subproblem 2
Set the factor '(3 + r)' equal to zero and attempt to solve: Simplifying 3 + r = 0 Solving 3 + r = 0 Move all terms containing r to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + r = 0 + -3 Combine like terms: 3 + -3 = 0 0 + r = 0 + -3 r = 0 + -3 Combine like terms: 0 + -3 = -3 r = -3 Simplifying r = -3Solution
r = {-5, -3}
| 0.03(195.96+x)=x | | 0=0.98x+0.02x-x | | 9y-12=-3y+12 | | 11+4n=n-7 | | 4y+10=-y-10 | | 8-(2z+4)=-(-8z+7)-7 | | 2x-1=x-5+3x | | 7(4p+13)+3p=308 | | (x-9)(4x+9)= | | 0=3x^2+12x-20 | | 11+4x=n-7 | | -24=-3v | | 8x^2=5x^2 | | 3z+4=34 | | 7+4g=17.4 | | -4x+6=62 | | -4=12t-13 | | 0.35*(25583.42+x)=x | | 4+7x=20-3x | | a=32-9(2) | | -9e+3.1+5e-7.1=8 | | (d-3)(d-1)=4 | | 2x^2=14x+20 | | 4y-3(5y-13)=105 | | 50=16y+2 | | r^3-r^2-4=0 | | 2x^2-14x-20=0 | | y^3+7y^2-y-7=0 | | 18+6p=8(2p+1) | | 6z=0.6z | | -12+b=-4b-7 | | -(5y+2)-(-4y-4)=-6 |