If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying 10r2 + 21r + 8 = 0 Reorder the terms: 8 + 21r + 10r2 = 0 Solving 8 + 21r + 10r2 = 0 Solving for variable 'r'. Factor a trinomial. (8 + 5r)(1 + 2r) = 0Subproblem 1
Set the factor '(8 + 5r)' equal to zero and attempt to solve: Simplifying 8 + 5r = 0 Solving 8 + 5r = 0 Move all terms containing r to the left, all other terms to the right. Add '-8' to each side of the equation. 8 + -8 + 5r = 0 + -8 Combine like terms: 8 + -8 = 0 0 + 5r = 0 + -8 5r = 0 + -8 Combine like terms: 0 + -8 = -8 5r = -8 Divide each side by '5'. r = -1.6 Simplifying r = -1.6Subproblem 2
Set the factor '(1 + 2r)' equal to zero and attempt to solve: Simplifying 1 + 2r = 0 Solving 1 + 2r = 0 Move all terms containing r to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + 2r = 0 + -1 Combine like terms: 1 + -1 = 0 0 + 2r = 0 + -1 2r = 0 + -1 Combine like terms: 0 + -1 = -1 2r = -1 Divide each side by '2'. r = -0.5 Simplifying r = -0.5Solution
r = {-1.6, -0.5}
| 3(2x-14)+x=15+9x+5 | | Y/12=16 | | 12=4+4w | | 5-7y=4x | | 12-0.5=.25+x | | 4r^2+13r+9=0 | | -53=8x+4x-177 | | b+2-b+6=0 | | -69t+2=56 | | 2((-13+-2b)(4+-1b))=0 | | R(p)=2.5p^2+500p | | 24=-4y | | -34-4R=-5+6R | | -4/5-(-3/10) | | 5x(2x-1)=15 | | 2(1n+5)=-2 | | 7/10-4/5 | | ln(5x+1)=10 | | -36=-x/9 | | 11-s=24 | | -u+285=139 | | 18-n^2+3n=0 | | 3x+2(x+1)=2x+8 | | 5S+4=-6 | | 47=e^2x-1 | | 10=243-u | | 18=3f | | 4b^2+10b-104=0 | | 3=5-2y | | -5=w+2 | | x+2x+3x+1=3x-2 | | -5+4F=-7 |