If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying 8r2 + 71r + -90 = 0 Reorder the terms: -90 + 71r + 8r2 = 0 Solving -90 + 71r + 8r2 = 0 Solving for variable 'r'. Factor a trinomial. (-10 + -1r)(9 + -8r) = 0Subproblem 1
Set the factor '(-10 + -1r)' equal to zero and attempt to solve: Simplifying -10 + -1r = 0 Solving -10 + -1r = 0 Move all terms containing r to the left, all other terms to the right. Add '10' to each side of the equation. -10 + 10 + -1r = 0 + 10 Combine like terms: -10 + 10 = 0 0 + -1r = 0 + 10 -1r = 0 + 10 Combine like terms: 0 + 10 = 10 -1r = 10 Divide each side by '-1'. r = -10 Simplifying r = -10Subproblem 2
Set the factor '(9 + -8r)' equal to zero and attempt to solve: Simplifying 9 + -8r = 0 Solving 9 + -8r = 0 Move all terms containing r to the left, all other terms to the right. Add '-9' to each side of the equation. 9 + -9 + -8r = 0 + -9 Combine like terms: 9 + -9 = 0 0 + -8r = 0 + -9 -8r = 0 + -9 Combine like terms: 0 + -9 = -9 -8r = -9 Divide each side by '-8'. r = 1.125 Simplifying r = 1.125Solution
r = {-10, 1.125}
| 9k^2+53k+40=0 | | 7/8w=8/9 | | x^2-300x+20000=0 | | 7x-36=-1 | | x+(x-13)=37 | | x^2-6x-9=16 | | 5x-4y-30+40=360 | | -5x+-4x= | | 4n^3+4n^2=0 | | t/4=19 | | 1/7s=1/9 | | 5x^4+10x=0 | | 3b-1=2-6b | | a-1.2/3-3=2.5 | | X+2Y+4Z=16 | | 3x+5=1.7 | | x+0.05x=55000 | | x^2-150x+40000=0 | | 12-5x=9+x | | 1.8*x*16+1.5*(22000-x)*16=556000 | | 12-5x=9+2 | | x^3-12x^2-500=0 | | 1.8*x+1.5*(22000-x)=556000 | | 3x^2+10-48=0 | | y=x^3+9x^2-5 | | (Cos2x-sin2x)/cos2x | | X=(5±√21)/2 | | 12c-3=8 | | 3cos2x=3/2 | | x^2=144m^2 | | 5x-2=2x+4x | | 7x+5y+5z-3x+3z-6y= |