If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying 13r2 + 21r + -10 = 0 Reorder the terms: -10 + 21r + 13r2 = 0 Solving -10 + 21r + 13r2 = 0 Solving for variable 'r'. Factor a trinomial. (-2 + -1r)(5 + -13r) = 0Subproblem 1
Set the factor '(-2 + -1r)' equal to zero and attempt to solve: Simplifying -2 + -1r = 0 Solving -2 + -1r = 0 Move all terms containing r to the left, all other terms to the right. Add '2' to each side of the equation. -2 + 2 + -1r = 0 + 2 Combine like terms: -2 + 2 = 0 0 + -1r = 0 + 2 -1r = 0 + 2 Combine like terms: 0 + 2 = 2 -1r = 2 Divide each side by '-1'. r = -2 Simplifying r = -2Subproblem 2
Set the factor '(5 + -13r)' equal to zero and attempt to solve: Simplifying 5 + -13r = 0 Solving 5 + -13r = 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 + -13r = 0 + -5 Combine like terms: 5 + -5 = 0 0 + -13r = 0 + -5 -13r = 0 + -5 Combine like terms: 0 + -5 = -5 -13r = -5 Divide each side by '-13'. r = 0.3846153846 Simplifying r = 0.3846153846Solution
r = {-2, 0.3846153846}
| 3x+9+4=2 | | 18x^2+36x-14= | | -8x+4=-13-1 | | 4.2+7z=28 | | 5a-4=16 | | 6y^2+72y+192= | | 64x^2+72x+20=0 | | 16x^2-4x-6= | | 14b^2+7b-42= | | 6b-2=10 | | uy-24=-7 | | 6f+13=-7f-65 | | graphx+2y=-7 | | 2b+3=9 | | 12x^2-x-35= | | 28=12+y+3y | | 50+3.75x=800 | | -14r=-4r-50 | | 50+3.75x=400 | | -40-9x=13x+72 | | 9x^2+18x-27= | | 8t^2+32t+24= | | 45-3s=-6s | | 7m=56 | | a+4=7 | | 2x=10-2y | | 4k^2+2k-12= | | x^2-1.5x+5=0 | | 2r^2+3r-14= | | 2n^2-11n+13= | | 50+3.75x=50 | | 18v^2+24v+12= |