If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying r2 + -16r + 15 = -40 Reorder the terms: 15 + -16r + r2 = -40 Solving 15 + -16r + r2 = -40 Solving for variable 'r'. Reorder the terms: 15 + 40 + -16r + r2 = -40 + 40 Combine like terms: 15 + 40 = 55 55 + -16r + r2 = -40 + 40 Combine like terms: -40 + 40 = 0 55 + -16r + r2 = 0 Factor a trinomial. (5 + -1r)(11 + -1r) = 0Subproblem 1
Set the factor '(5 + -1r)' equal to zero and attempt to solve: Simplifying 5 + -1r = 0 Solving 5 + -1r = 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 + -1r = 0 + -5 Combine like terms: 5 + -5 = 0 0 + -1r = 0 + -5 -1r = 0 + -5 Combine like terms: 0 + -5 = -5 -1r = -5 Divide each side by '-1'. r = 5 Simplifying r = 5Subproblem 2
Set the factor '(11 + -1r)' equal to zero and attempt to solve: Simplifying 11 + -1r = 0 Solving 11 + -1r = 0 Move all terms containing r to the left, all other terms to the right. Add '-11' to each side of the equation. 11 + -11 + -1r = 0 + -11 Combine like terms: 11 + -11 = 0 0 + -1r = 0 + -11 -1r = 0 + -11 Combine like terms: 0 + -11 = -11 -1r = -11 Divide each side by '-1'. r = 11 Simplifying r = 11Solution
r = {5, 11}
| 5(20)= | | lx-2l=24 | | -2Q-2=3Q+3 | | 4x+6+10=120 | | -12x+10y=-12 | | 3w-6+8+w=-18 | | 6x+9y=70 | | logb(40)=256 | | 3(2x-6)=6(3x+2) | | -1.8=-3.6+2.1y-0.3y | | 17(76+12y)=4-12y | | -4t^3+25t-18=0 | | 8x-2(x-3)=-2(x+5) | | 42+4-14d=36 | | 5(2x-3)=2(3x+2) | | 5x+29=2x+20 | | 2x^3-17x^2+28x-13=0 | | 10x+3y=203 | | 6=w+7-4w+2 | | 5(x+4)=3(x+5) | | 6m+16=10 | | A=xv+z | | A=B(2C+D) | | 9x=40-14(8) | | 1-10=4z-z | | m+4=3+m+1 | | 2m-57=(-41) | | (13-x)x(-8)=-19 | | 3y-y+6=6 | | 82=-x+4(x+7) | | 2x+6y=396 | | 0=-3x^2-2 |