If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying r2 + -12r + -1 = 0 Reorder the terms: -1 + -12r + r2 = 0 Solving -1 + -12r + r2 = 0 Solving for variable 'r'. Begin completing the square. Move the constant term to the right: Add '1' to each side of the equation. -1 + -12r + 1 + r2 = 0 + 1 Reorder the terms: -1 + 1 + -12r + r2 = 0 + 1 Combine like terms: -1 + 1 = 0 0 + -12r + r2 = 0 + 1 -12r + r2 = 0 + 1 Combine like terms: 0 + 1 = 1 -12r + r2 = 1 The r term is -12r. Take half its coefficient (-6). Square it (36) and add it to both sides. Add '36' to each side of the equation. -12r + 36 + r2 = 1 + 36 Reorder the terms: 36 + -12r + r2 = 1 + 36 Combine like terms: 1 + 36 = 37 36 + -12r + r2 = 37 Factor a perfect square on the left side: (r + -6)(r + -6) = 37 Calculate the square root of the right side: 6.08276253 Break this problem into two subproblems by setting (r + -6) equal to 6.08276253 and -6.08276253.Subproblem 1
r + -6 = 6.08276253 Simplifying r + -6 = 6.08276253 Reorder the terms: -6 + r = 6.08276253 Solving -6 + r = 6.08276253 Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '6' to each side of the equation. -6 + 6 + r = 6.08276253 + 6 Combine like terms: -6 + 6 = 0 0 + r = 6.08276253 + 6 r = 6.08276253 + 6 Combine like terms: 6.08276253 + 6 = 12.08276253 r = 12.08276253 Simplifying r = 12.08276253Subproblem 2
r + -6 = -6.08276253 Simplifying r + -6 = -6.08276253 Reorder the terms: -6 + r = -6.08276253 Solving -6 + r = -6.08276253 Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '6' to each side of the equation. -6 + 6 + r = -6.08276253 + 6 Combine like terms: -6 + 6 = 0 0 + r = -6.08276253 + 6 r = -6.08276253 + 6 Combine like terms: -6.08276253 + 6 = -0.08276253 r = -0.08276253 Simplifying r = -0.08276253Solution
The solution to the problem is based on the solutions from the subproblems. r = {12.08276253, -0.08276253}
| -[3z^2+4z-(2z^2-8z)]+[(9z^2-[5z-z^2])+5z^2]= | | -30=-6(3n-7) | | -30=6(3n-7) | | -8x+y-x+7y= | | .03x^2-9x+600=0 | | -(8-r)=-15 | | x^2+x+0.25=25 | | 3x+5x+10x=180 | | 3/4t-4=2 | | 6=-2+4(p+8) | | y/2-1=2 | | x*x-2x-5=0 | | 28=-4x+8(2x-1) | | x/3=8.1 | | 2(x+1)-4=4x-2(2+x) | | 1+5n+5=10+3n | | 6(3n-3)=(8n+6)+2 | | 50x+3n=100 | | z^2+10z=75 | | 4=4-4y-7y | | y-1=-0.75(x-1) | | (224.9/0.2)^2/3 | | -9=.16z-11 | | 3+dz=12 | | 5x+9=x+11 | | -9h-6+12+40=22 | | 5x+9=x+111 | | 15y-10=14y+13 | | y-6=-1(x-2) | | y-4=-1.5(x-3) | | 3x-4y+1z+10=0 | | y=-4/3(1)-5 |