If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying 2r2 + 8r + 7 = 0 Reorder the terms: 7 + 8r + 2r2 = 0 Solving 7 + 8r + 2r2 = 0 Solving for variable 'r'. Begin completing the square. Divide all terms by 2 the coefficient of the squared term: Divide each side by '2'. 3.5 + 4r + r2 = 0 Move the constant term to the right: Add '-3.5' to each side of the equation. 3.5 + 4r + -3.5 + r2 = 0 + -3.5 Reorder the terms: 3.5 + -3.5 + 4r + r2 = 0 + -3.5 Combine like terms: 3.5 + -3.5 = 0.0 0.0 + 4r + r2 = 0 + -3.5 4r + r2 = 0 + -3.5 Combine like terms: 0 + -3.5 = -3.5 4r + r2 = -3.5 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 = -3.5 + 4 Reorder the terms: 4 + 4r + r2 = -3.5 + 4 Combine like terms: -3.5 + 4 = 0.5 4 + 4r + r2 = 0.5 Factor a perfect square on the left side: (r + 2)(r + 2) = 0.5 Calculate the square root of the right side: 0.707106781 Break this problem into two subproblems by setting (r + 2) equal to 0.707106781 and -0.707106781.Subproblem 1
r + 2 = 0.707106781 Simplifying r + 2 = 0.707106781 Reorder the terms: 2 + r = 0.707106781 Solving 2 + r = 0.707106781 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 = 0.707106781 + -2 Combine like terms: 2 + -2 = 0 0 + r = 0.707106781 + -2 r = 0.707106781 + -2 Combine like terms: 0.707106781 + -2 = -1.292893219 r = -1.292893219 Simplifying r = -1.292893219Subproblem 2
r + 2 = -0.707106781 Simplifying r + 2 = -0.707106781 Reorder the terms: 2 + r = -0.707106781 Solving 2 + r = -0.707106781 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 = -0.707106781 + -2 Combine like terms: 2 + -2 = 0 0 + r = -0.707106781 + -2 r = -0.707106781 + -2 Combine like terms: -0.707106781 + -2 = -2.707106781 r = -2.707106781 Simplifying r = -2.707106781Solution
The solution to the problem is based on the solutions from the subproblems. r = {-1.292893219, -2.707106781}
| ((16x1/6y^-2)/(x^-1/6y^6)) | | 3x(x+6)-x=2x+18 | | Gx=0.0625x-1.1 | | 12+9x+10x=180 | | A(5)=4(3.14)25 | | 11x+6+12x-3=180 | | 3x^3-2x^2-16x=0 | | 8d^2-8d-5=0 | | 3(q-2)+2=17 | | 5k-20-7k=27-22k+9 | | 3x(x+6)-x=2x | | 0=-16t^2+(136)(t)+0 | | 8-3(b-2)=23 | | 68=y/5 | | a-4.4=11.6 | | g(x)=0.25x^2-1.1 | | 9x+15+6+15=100 | | 9x+15+6+15=90 | | 9second=9n | | -31-4w=-5-5(1+5w) | | 9x+15+6+15=180 | | -2(-8w+9)-8w=2(w-9)-9 | | 8x-2=12x+3 | | 6.2x=-24.8 | | 9x+15=6+15 | | G(x)=x^2+4x+1 | | 4=25-7t | | 20-(-6)= | | (f^3g^5)/(g^6f^4)^3= | | x^5+6=0 | | y-0.8=3.25 | | (2/3)times16 |