If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying 9r2 + -40r + 16 = 0 Reorder the terms: 16 + -40r + 9r2 = 0 Solving 16 + -40r + 9r2 = 0 Solving for variable 'r'. Factor a trinomial. (4 + -9r)(4 + -1r) = 0Subproblem 1
Set the factor '(4 + -9r)' equal to zero and attempt to solve: Simplifying 4 + -9r = 0 Solving 4 + -9r = 0 Move all terms containing r to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + -4 + -9r = 0 + -4 Combine like terms: 4 + -4 = 0 0 + -9r = 0 + -4 -9r = 0 + -4 Combine like terms: 0 + -4 = -4 -9r = -4 Divide each side by '-9'. r = 0.4444444444 Simplifying r = 0.4444444444Subproblem 2
Set the factor '(4 + -1r)' equal to zero and attempt to solve: Simplifying 4 + -1r = 0 Solving 4 + -1r = 0 Move all terms containing r to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + -4 + -1r = 0 + -4 Combine like terms: 4 + -4 = 0 0 + -1r = 0 + -4 -1r = 0 + -4 Combine like terms: 0 + -4 = -4 -1r = -4 Divide each side by '-1'. r = 4 Simplifying r = 4Solution
r = {0.4444444444, 4}
| -8w+3=251 | | -16x^4+x^2-11=0 | | 5+8x-10x-4=13 | | -18(12-15r)+14r= | | 5x^2-11x-36= | | 7x^2-51x+54= | | 7+3i= | | x^2(5+m)-7=300 | | x^2(5+m)-7h=3000 | | x^2(5+m)-7h=30 | | 7x^2-13x-24= | | x^2(5+m)-7h=3 | | 2b^2-11b-6= | | 18x+30=15x-45 | | 3(2m-1)+3(5-m)=1 | | 9x^2+43x+28= | | 6z-.07=7z | | 45!/(45-4)!4! | | 8y+36-3y=2y+79 | | 9x^2+43+28= | | 4x+6x-24=31+15x | | 4x+6x-24=4 | | 2x^7-2x=0 | | 4n^2-23n-6= | | 15h=200 | | 3(2x-7)-5(3x+1)+4x=8-2(5x-3) | | -5(m+2)+5(8m-2)=34(m-1)-5 | | -7+4n=9 | | 10x^2-29x-72= | | 48+2x=4x+94 | | 9b^2-27b+20= | | 11x=-66 |