If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying r4 + -10r2 + -9 = 0 Reorder the terms: -9 + -10r2 + r4 = 0 Solving -9 + -10r2 + r4 = 0 Solving for variable 'r'. Begin completing the square. Move the constant term to the right: Add '9' to each side of the equation. -9 + -10r2 + 9 + r4 = 0 + 9 Reorder the terms: -9 + 9 + -10r2 + r4 = 0 + 9 Combine like terms: -9 + 9 = 0 0 + -10r2 + r4 = 0 + 9 -10r2 + r4 = 0 + 9 Combine like terms: 0 + 9 = 9 -10r2 + r4 = 9 The r term is -10r2. Take half its coefficient (-5). Square it (25) and add it to both sides. Add '25' to each side of the equation. -10r2 + 25 + r4 = 9 + 25 Reorder the terms: 25 + -10r2 + r4 = 9 + 25 Combine like terms: 9 + 25 = 34 25 + -10r2 + r4 = 34 Factor a perfect square on the left side: (r2 + -5)(r2 + -5) = 34 Calculate the square root of the right side: 5.830951895 Break this problem into two subproblems by setting (r2 + -5) equal to 5.830951895 and -5.830951895.Subproblem 1
r2 + -5 = 5.830951895 Simplifying r2 + -5 = 5.830951895 Reorder the terms: -5 + r2 = 5.830951895 Solving -5 + r2 = 5.830951895 Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '5' to each side of the equation. -5 + 5 + r2 = 5.830951895 + 5 Combine like terms: -5 + 5 = 0 0 + r2 = 5.830951895 + 5 r2 = 5.830951895 + 5 Combine like terms: 5.830951895 + 5 = 10.830951895 r2 = 10.830951895 Simplifying r2 = 10.830951895 Take the square root of each side: r = {-3.291041157, 3.291041157}Subproblem 2
r2 + -5 = -5.830951895 Simplifying r2 + -5 = -5.830951895 Reorder the terms: -5 + r2 = -5.830951895 Solving -5 + r2 = -5.830951895 Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '5' to each side of the equation. -5 + 5 + r2 = -5.830951895 + 5 Combine like terms: -5 + 5 = 0 0 + r2 = -5.830951895 + 5 r2 = -5.830951895 + 5 Combine like terms: -5.830951895 + 5 = -0.830951895 r2 = -0.830951895 Simplifying r2 = -0.830951895 Reorder the terms: 0.830951895 + r2 = -0.830951895 + 0.830951895 Combine like terms: -0.830951895 + 0.830951895 = 0.000000000 0.830951895 + r2 = 0.000000000 The solution to this equation could not be determined.This subproblem is being ignored because a solution could not be determined. The solution to this equation could not be determined.
| 4+7(1+2c)=-30 | | 7+6=31 | | -3v+18=7(v-6) | | -7+9c=-25 | | ln(7x)+ln(5x)=7 | | B-1+6b=32 | | 9(x-5)=-8x+6 | | -14=y/9-6 | | 12y+6=12y+3 | | -88=-7+9z | | 0=1/4x-6 | | 2y-(5y+9)=13 | | 3x-36=2x+24 | | x(x-1)=650 | | -5+3a=-17 | | 5x+5(2x+11)=130 | | 4(3x-1)=12x+1 | | 6/-7/3/11 | | 2x+8y+4z=32 | | ln(5x)+ln(6x)=16 | | -3*0+y=6 | | 5(2x-1)(3x+1)=1 | | 8f-24+4f=-8 | | -3/-9 | | 9(x-5)=8x-6 | | b2=25/81 | | -5+3a=-7 | | x^-2=1/35 | | x/(100-x)=19 | | 3(z-5)=-4 | | x-2x+5=-1(3+x) | | -15=9+8c |