If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying 3r2 + -7r + -28 = -8 Reorder the terms: -28 + -7r + 3r2 = -8 Solving -28 + -7r + 3r2 = -8 Solving for variable 'r'. Reorder the terms: -28 + 8 + -7r + 3r2 = -8 + 8 Combine like terms: -28 + 8 = -20 -20 + -7r + 3r2 = -8 + 8 Combine like terms: -8 + 8 = 0 -20 + -7r + 3r2 = 0 Factor a trinomial. (-5 + -3r)(4 + -1r) = 0Subproblem 1
Set the factor '(-5 + -3r)' equal to zero and attempt to solve: Simplifying -5 + -3r = 0 Solving -5 + -3r = 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 + -3r = 0 + 5 Combine like terms: -5 + 5 = 0 0 + -3r = 0 + 5 -3r = 0 + 5 Combine like terms: 0 + 5 = 5 -3r = 5 Divide each side by '-3'. r = -1.666666667 Simplifying r = -1.666666667Subproblem 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 = {-1.666666667, 4}
| 45-8x=13 | | 11-x-3=4x+2-6x | | 5-3x=9-x | | 13=16y-1 | | 10(s-4)=-84 | | 9x+2y=11 | | 3x-5+x=-2x+9+x | | 5(n-4)=2n+7 | | 3x^2-17xy+20y^2=0 | | 6w-4= | | 5x^2+3xy-14y^2=0 | | 4b^2+13b+3=0 | | 12y-8=1 | | 2x-1=11x-57 | | X^2=-x+42 | | 18x^2+41x+21=0 | | -18x+-13=41 | | 8x^2=-12x | | f(-4)=x^2+3 | | 29x-37=21 | | 25x-4=50x-114 | | y=-4(-4)+8 | | Z-13=199 | | 11x+46=13 | | 12x-1=2(2x+4) | | y=-4(9)+8 | | 6r+30= | | y=-4(2)+8 | | 81p=729 | | 9p^2-26p+16=0 | | -25x-16=-166 | | -3x+13=28 |