If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying r2 + -4r = 19 Reorder the terms: -4r + r2 = 19 Solving -4r + r2 = 19 Solving for variable 'r'. Reorder the terms: -19 + -4r + r2 = 19 + -19 Combine like terms: 19 + -19 = 0 -19 + -4r + r2 = 0 Begin completing the square. Move the constant term to the right: Add '19' to each side of the equation. -19 + -4r + 19 + r2 = 0 + 19 Reorder the terms: -19 + 19 + -4r + r2 = 0 + 19 Combine like terms: -19 + 19 = 0 0 + -4r + r2 = 0 + 19 -4r + r2 = 0 + 19 Combine like terms: 0 + 19 = 19 -4r + r2 = 19 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 = 19 + 4 Reorder the terms: 4 + -4r + r2 = 19 + 4 Combine like terms: 19 + 4 = 23 4 + -4r + r2 = 23 Factor a perfect square on the left side: (r + -2)(r + -2) = 23 Calculate the square root of the right side: 4.795831523 Break this problem into two subproblems by setting (r + -2) equal to 4.795831523 and -4.795831523.Subproblem 1
r + -2 = 4.795831523 Simplifying r + -2 = 4.795831523 Reorder the terms: -2 + r = 4.795831523 Solving -2 + r = 4.795831523 Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '2' to each side of the equation. -2 + 2 + r = 4.795831523 + 2 Combine like terms: -2 + 2 = 0 0 + r = 4.795831523 + 2 r = 4.795831523 + 2 Combine like terms: 4.795831523 + 2 = 6.795831523 r = 6.795831523 Simplifying r = 6.795831523Subproblem 2
r + -2 = -4.795831523 Simplifying r + -2 = -4.795831523 Reorder the terms: -2 + r = -4.795831523 Solving -2 + r = -4.795831523 Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '2' to each side of the equation. -2 + 2 + r = -4.795831523 + 2 Combine like terms: -2 + 2 = 0 0 + r = -4.795831523 + 2 r = -4.795831523 + 2 Combine like terms: -4.795831523 + 2 = -2.795831523 r = -2.795831523 Simplifying r = -2.795831523Solution
The solution to the problem is based on the solutions from the subproblems. r = {6.795831523, -2.795831523}
| 1-3x+8x+11=4x-8 | | 0.4x=0.8(x+6.8) | | 8(u-93)=48 | | -3(x+3)=2x+6 | | 18(1.5x-0.2)+3.6= | | 200+12x=440 | | 7y+15=9 | | 650=500+.02x | | 2(f-1)+f=3 | | 3x+2(2x+8)=9 | | 5x-2(-1)=22 | | 4x+8+2x+6+2x+6=180 | | z^2+4z=21 | | 4x+8+2x+6=180 | | -3h^2-66h=147 | | 28=18+m | | -1-/5b-2/5=-2 | | 3y-12=2y-7 | | 90=123+3x | | 4x-21=2y-7 | | -3(n+5)=3n+-2 | | (7x-2)4=(2x+6)10 | | -1+3x=2x | | x+4x-15+3x-5=180 | | 3/2x4/5 | | v^2-30v-41=0 | | 7mn^2=0 | | X-63=9(2x+3)-5 | | 4i(-3-yi)=27-12i | | 2x-29=7-4x | | 50-5x(27/9) | | 264+26+290= |