If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying r4 + -4r3 + 5r2 = 0 Reorder the terms: 5r2 + -4r3 + r4 = 0 Solving 5r2 + -4r3 + r4 = 0 Solving for variable 'r'. Factor out the Greatest Common Factor (GCF), 'r2'. r2(5 + -4r + r2) = 0Subproblem 1
Set the factor 'r2' equal to zero and attempt to solve: Simplifying r2 = 0 Solving r2 = 0 Move all terms containing r to the left, all other terms to the right. Simplifying r2 = 0 Take the square root of each side: r = {0}Subproblem 2
Set the factor '(5 + -4r + r2)' equal to zero and attempt to solve: Simplifying 5 + -4r + r2 = 0 Solving 5 + -4r + r2 = 0 Begin completing the square. Move the constant term to the right: Add '-5' to each side of the equation. 5 + -4r + -5 + r2 = 0 + -5 Reorder the terms: 5 + -5 + -4r + r2 = 0 + -5 Combine like terms: 5 + -5 = 0 0 + -4r + r2 = 0 + -5 -4r + r2 = 0 + -5 Combine like terms: 0 + -5 = -5 -4r + r2 = -5 The r term is -4r. Take half its coefficient (-2). Square it (4) and add it to both sides. Add '4' to each side of the equation. -4r + 4 + r2 = -5 + 4 Reorder the terms: 4 + -4r + r2 = -5 + 4 Combine like terms: -5 + 4 = -1 4 + -4r + r2 = -1 Factor a perfect square on the left side: (r + -2)(r + -2) = -1 Can't calculate square root of the right side. The solution to this equation could not be determined. This subproblem is being ignored because a solution could not be determined.Solution
r = {0}
| x+5y+8=-4 | | 8=8x+5 | | 3b=-99 | | x+5y+2z=-4 | | 3xb=-99 | | x^-7(x^5)^-4/(x^2)^-8 | | -4X^2-14X+30=0 | | 2a+2b=180 | | 6z+4-4z=22-4z | | 6=y/7.68 | | 20-p=3q | | 20+20w=100 | | e^8-3x=1848 | | 2x^2-24x+36=0 | | 5x-14a=26a-3x | | 9=3f | | 2x+10-6x=6x+9-6x | | 20=p+3q | | 100-20w=20 | | x+x+.82+.09+x+x+.82+.09=9.68 | | 5(t-2)+5t=5(2t+3)-12 | | 63=-9/2x | | =(2x^2-3x^3)-(9x^2-8x^3) | | 2x+5y+6z=93 | | 6/6x=18 | | -35+7ln(x)=0 | | x(a+4)=3(x-1) | | 20(x-1)=-4(5-4)+16x | | -35+7lnx=0 | | 88=1/2h(11) | | x^2+5x-1972=0 | | 35n/5 |