If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying 5r2 = 31r + 28 Reorder the terms: 5r2 = 28 + 31r Solving 5r2 = 28 + 31r Solving for variable 'r'. Reorder the terms: -28 + -31r + 5r2 = 28 + 31r + -28 + -31r Reorder the terms: -28 + -31r + 5r2 = 28 + -28 + 31r + -31r Combine like terms: 28 + -28 = 0 -28 + -31r + 5r2 = 0 + 31r + -31r -28 + -31r + 5r2 = 31r + -31r Combine like terms: 31r + -31r = 0 -28 + -31r + 5r2 = 0 Factor a trinomial. (-4 + -5r)(7 + -1r) = 0Subproblem 1
Set the factor '(-4 + -5r)' equal to zero and attempt to solve: Simplifying -4 + -5r = 0 Solving -4 + -5r = 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 + -5r = 0 + 4 Combine like terms: -4 + 4 = 0 0 + -5r = 0 + 4 -5r = 0 + 4 Combine like terms: 0 + 4 = 4 -5r = 4 Divide each side by '-5'. r = -0.8 Simplifying r = -0.8Subproblem 2
Set the factor '(7 + -1r)' equal to zero and attempt to solve: Simplifying 7 + -1r = 0 Solving 7 + -1r = 0 Move all terms containing r to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -7 + -1r = 0 + -7 Combine like terms: 7 + -7 = 0 0 + -1r = 0 + -7 -1r = 0 + -7 Combine like terms: 0 + -7 = -7 -1r = -7 Divide each side by '-1'. r = 7 Simplifying r = 7Solution
r = {-0.8, 7}
| -2x+5=-7x | | 3m+27=0 | | graphy=2x+5 | | -6(4b+1)+(25b-5)=0 | | r^2+12*r+35=0 | | 5x^3-5x^2-12x=0 | | 5x^2-2x=9 | | 2.7q-5.2-4.8q=-3.1q-5.1 | | a+4=10 | | 13x+9-4=12x-4 | | 5*v^2=8*v | | -4y+1=-5y+9 | | 6y+8n-20y=8n+9y-(-15y) | | -5y=-85 | | 19x=4(5x-56) | | 12+x=-4 | | -48=13n+14 | | 5.1c-7.2=8.1 | | 3x^2+240=0 | | -6y=7 | | -4x+7=14 | | 37+35=9s+3s | | -3x=72 | | k+17=19 | | -2(171+2x)=436 | | 12=3.1y+59.3 | | 7+9= | | 22x+27=-33x-6 | | 6+-m+6+-8= | | X-29=-34 | | 5(x-4)=-2x+22 | | 0=96+80t-16t^2 |