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 = 16 Reorder the terms: -4r + r2 = 16 Solving -4r + r2 = 16 Solving for variable 'r'. Reorder the terms: -16 + -4r + r2 = 16 + -16 Combine like terms: 16 + -16 = 0 -16 + -4r + r2 = 0 Begin completing the square. Move the constant term to the right: Add '16' to each side of the equation. -16 + -4r + 16 + r2 = 0 + 16 Reorder the terms: -16 + 16 + -4r + r2 = 0 + 16 Combine like terms: -16 + 16 = 0 0 + -4r + r2 = 0 + 16 -4r + r2 = 0 + 16 Combine like terms: 0 + 16 = 16 -4r + r2 = 16 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 = 16 + 4 Reorder the terms: 4 + -4r + r2 = 16 + 4 Combine like terms: 16 + 4 = 20 4 + -4r + r2 = 20 Factor a perfect square on the left side: (r + -2)(r + -2) = 20 Calculate the square root of the right side: 4.472135955 Break this problem into two subproblems by setting (r + -2) equal to 4.472135955 and -4.472135955.Subproblem 1
r + -2 = 4.472135955 Simplifying r + -2 = 4.472135955 Reorder the terms: -2 + r = 4.472135955 Solving -2 + r = 4.472135955 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 = 4.472135955 + 2 Combine like terms: -2 + 2 = 0 0 + r = 4.472135955 + 2 r = 4.472135955 + 2 Combine like terms: 4.472135955 + 2 = 6.472135955 r = 6.472135955 Simplifying r = 6.472135955Subproblem 2
r + -2 = -4.472135955 Simplifying r + -2 = -4.472135955 Reorder the terms: -2 + r = -4.472135955 Solving -2 + r = -4.472135955 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 = -4.472135955 + 2 Combine like terms: -2 + 2 = 0 0 + r = -4.472135955 + 2 r = -4.472135955 + 2 Combine like terms: -4.472135955 + 2 = -2.472135955 r = -2.472135955 Simplifying r = -2.472135955Solution
The solution to the problem is based on the solutions from the subproblems. r = {6.472135955, -2.472135955}
| -34=-5(9c-6) | | y=8sinx+6cosx | | 4v+4-2(-8v-2)=2(v-4) | | 7n+8+12n+4=27+2n | | 4x+40=100-x | | m+4-5m=-5-m | | (-3m^2y^4)(2m^3y^2)(-4my)= | | kx^2-2kx+5=0 | | .07x+.09(34000-x)=3060 | | s+y+m=d | | 16/49-v2 | | 8x+216=18(x+12) | | p=5s-2(50+s) | | 45/3=y | | -2(-7x+5)-2x=4(x-4)-8 | | X*X+3x=312 | | 4+8x=6x+6 | | -2/9(9p+18)=31/2 | | -4a-3+5a=-31 | | 5x+5x=5x-4-4-12 | | 100(1/2)=x | | -9y-23=-5(y+7) | | 16b(b-3)+(b-3)= | | 2x-11=x-8 | | 7x^2+14x+16=0 | | F=na | | 8/9(4x-3)=2/3 | | 2x=8(7-x) | | x^2+3x=312 | | 6(5-8x)=34 | | X+3+x+3+x+3=x+3+x+2x+3 | | 45/5=y |