If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying 2r2 = -2r + 5 Reorder the terms: 2r2 = 5 + -2r Solving 2r2 = 5 + -2r Solving for variable 'r'. Reorder the terms: -5 + 2r + 2r2 = 5 + -2r + -5 + 2r Reorder the terms: -5 + 2r + 2r2 = 5 + -5 + -2r + 2r Combine like terms: 5 + -5 = 0 -5 + 2r + 2r2 = 0 + -2r + 2r -5 + 2r + 2r2 = -2r + 2r Combine like terms: -2r + 2r = 0 -5 + 2r + 2r2 = 0 Begin completing the square. Divide all terms by 2 the coefficient of the squared term: Divide each side by '2'. -2.5 + r + r2 = 0 Move the constant term to the right: Add '2.5' to each side of the equation. -2.5 + r + 2.5 + r2 = 0 + 2.5 Reorder the terms: -2.5 + 2.5 + r + r2 = 0 + 2.5 Combine like terms: -2.5 + 2.5 = 0.0 0.0 + r + r2 = 0 + 2.5 r + r2 = 0 + 2.5 Combine like terms: 0 + 2.5 = 2.5 r + r2 = 2.5 The r term is r. Take half its coefficient (0.5). Square it (0.25) and add it to both sides. Add '0.25' to each side of the equation. + 0.25 + r2 = 2.5 + 0.25 Combine like terms: + 0.25 = 1.25 1.25 + r2 = 2.5 + 0.25 Combine like terms: 2.5 + 0.25 = 2.75 1.25 + r2 = 2.75 Factor a perfect square on the left side: (r + 0.5)(r + 0.5) = 2.75 Calculate the square root of the right side: 1.658312395 Break this problem into two subproblems by setting (r + 0.5) equal to 1.658312395 and -1.658312395.Subproblem 1
r + 0.5 = 1.658312395 Simplifying r + 0.5 = 1.658312395 Reorder the terms: 0.5 + r = 1.658312395 Solving 0.5 + r = 1.658312395 Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '-0.5' to each side of the equation. 0.5 + -0.5 + r = 1.658312395 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + r = 1.658312395 + -0.5 r = 1.658312395 + -0.5 Combine like terms: 1.658312395 + -0.5 = 1.158312395 r = 1.158312395 Simplifying r = 1.158312395Subproblem 2
r + 0.5 = -1.658312395 Simplifying r + 0.5 = -1.658312395 Reorder the terms: 0.5 + r = -1.658312395 Solving 0.5 + r = -1.658312395 Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '-0.5' to each side of the equation. 0.5 + -0.5 + r = -1.658312395 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + r = -1.658312395 + -0.5 r = -1.658312395 + -0.5 Combine like terms: -1.658312395 + -0.5 = -2.158312395 r = -2.158312395 Simplifying r = -2.158312395Solution
The solution to the problem is based on the solutions from the subproblems. r = {1.158312395, -2.158312395}
| 3y=275 | | 1(2x-5)+1(4x+3)=1 | | 12/5+3x=4x-33/5 | | 21/3*5 | | 1/3p=1/2p+1/3 | | 2x+2=154 | | 2x-3003=7807 | | (4w^6v^2)(2v^7)(2w)= | | 4x(x-2)-3(x-4)=4 | | 9x=8x+20 | | -x-6=-2x-8 | | 8x-(2x+8)=9x-47 | | 8+2x=6-x | | 5(3y-7/8)=3y-10 | | 5x+4x=12 | | 2*5+3*-2= | | 3-(x-3)=4-2x | | 3(x+7)-6(x+1)=-3 | | x*2/5=8 | | 77-2x=10x+14 | | 9z-z=-3+3z-3-9 | | 65x+60x=250 | | 32+2x=6x | | 3/4+4/5(5/9+9/11)= | | 3x-1/2=51/2 | | 0.3z-29.47=18.7 | | 2/5*x | | -4y=-48-10x | | 2x+1=319 | | (78+x)/2=80 | | n/3+(-4)=-2 | | 2x=319 |