If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying r2 + -8r + 1 = 0 Reorder the terms: 1 + -8r + r2 = 0 Solving 1 + -8r + 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 + -8r + -1 + r2 = 0 + -1 Reorder the terms: 1 + -1 + -8r + r2 = 0 + -1 Combine like terms: 1 + -1 = 0 0 + -8r + r2 = 0 + -1 -8r + r2 = 0 + -1 Combine like terms: 0 + -1 = -1 -8r + r2 = -1 The r term is -8r. Take half its coefficient (-4). Square it (16) and add it to both sides. Add '16' to each side of the equation. -8r + 16 + r2 = -1 + 16 Reorder the terms: 16 + -8r + r2 = -1 + 16 Combine like terms: -1 + 16 = 15 16 + -8r + r2 = 15 Factor a perfect square on the left side: (r + -4)(r + -4) = 15 Calculate the square root of the right side: 3.872983346 Break this problem into two subproblems by setting (r + -4) equal to 3.872983346 and -3.872983346.Subproblem 1
r + -4 = 3.872983346 Simplifying r + -4 = 3.872983346 Reorder the terms: -4 + r = 3.872983346 Solving -4 + r = 3.872983346 Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '4' to each side of the equation. -4 + 4 + r = 3.872983346 + 4 Combine like terms: -4 + 4 = 0 0 + r = 3.872983346 + 4 r = 3.872983346 + 4 Combine like terms: 3.872983346 + 4 = 7.872983346 r = 7.872983346 Simplifying r = 7.872983346Subproblem 2
r + -4 = -3.872983346 Simplifying r + -4 = -3.872983346 Reorder the terms: -4 + r = -3.872983346 Solving -4 + r = -3.872983346 Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '4' to each side of the equation. -4 + 4 + r = -3.872983346 + 4 Combine like terms: -4 + 4 = 0 0 + r = -3.872983346 + 4 r = -3.872983346 + 4 Combine like terms: -3.872983346 + 4 = 0.127016654 r = 0.127016654 Simplifying r = 0.127016654Solution
The solution to the problem is based on the solutions from the subproblems. r = {7.872983346, 0.127016654}
| 4x+11-8x=20-18x+14-9 | | (2a/b)0 | | (7a+10)/(9a+14) | | u^2-12u=31 | | .05x-.08+x=0.97 | | 8x-12=18+2x | | f^2-2f-29=0 | | 23/x=x-10 | | 8.3=6.1+c | | 2t^2-3t-9=0 | | w^2-16w=21 | | 200-20x=50+40x | | 4s-5=-5+2s | | 3.3=2.83-p | | 3X^2+50x-88=0 | | 7x+4y=-96 | | 3.3=2.83 | | -4x-3y=6 | | 4-3x=y | | -21+(-15)+(-22)= | | 12x-2y=-2 | | 94(y.1)+95(y.3)+98.5(y.35)=y | | 3700=4.5b-480.5 | | X+8y=100 | | v^2-2v+1-81g^2= | | h=-16t^2-29t+110 | | 2/13*13/2 | | p=4.5(230)-480.5 | | -3(x+8)-44=5-52 | | -6x+4y=84 | | -93+(-16)= | | 9x+23+5x=59 |