If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying b2 + -20b + -7 = -5 Reorder the terms: -7 + -20b + b2 = -5 Solving -7 + -20b + b2 = -5 Solving for variable 'b'. Reorder the terms: -7 + 5 + -20b + b2 = -5 + 5 Combine like terms: -7 + 5 = -2 -2 + -20b + b2 = -5 + 5 Combine like terms: -5 + 5 = 0 -2 + -20b + b2 = 0 Begin completing the square. Move the constant term to the right: Add '2' to each side of the equation. -2 + -20b + 2 + b2 = 0 + 2 Reorder the terms: -2 + 2 + -20b + b2 = 0 + 2 Combine like terms: -2 + 2 = 0 0 + -20b + b2 = 0 + 2 -20b + b2 = 0 + 2 Combine like terms: 0 + 2 = 2 -20b + b2 = 2 The b term is -20b. Take half its coefficient (-10). Square it (100) and add it to both sides. Add '100' to each side of the equation. -20b + 100 + b2 = 2 + 100 Reorder the terms: 100 + -20b + b2 = 2 + 100 Combine like terms: 2 + 100 = 102 100 + -20b + b2 = 102 Factor a perfect square on the left side: (b + -10)(b + -10) = 102 Calculate the square root of the right side: 10.099504938 Break this problem into two subproblems by setting (b + -10) equal to 10.099504938 and -10.099504938.Subproblem 1
b + -10 = 10.099504938 Simplifying b + -10 = 10.099504938 Reorder the terms: -10 + b = 10.099504938 Solving -10 + b = 10.099504938 Solving for variable 'b'. Move all terms containing b to the left, all other terms to the right. Add '10' to each side of the equation. -10 + 10 + b = 10.099504938 + 10 Combine like terms: -10 + 10 = 0 0 + b = 10.099504938 + 10 b = 10.099504938 + 10 Combine like terms: 10.099504938 + 10 = 20.099504938 b = 20.099504938 Simplifying b = 20.099504938Subproblem 2
b + -10 = -10.099504938 Simplifying b + -10 = -10.099504938 Reorder the terms: -10 + b = -10.099504938 Solving -10 + b = -10.099504938 Solving for variable 'b'. Move all terms containing b to the left, all other terms to the right. Add '10' to each side of the equation. -10 + 10 + b = -10.099504938 + 10 Combine like terms: -10 + 10 = 0 0 + b = -10.099504938 + 10 b = -10.099504938 + 10 Combine like terms: -10.099504938 + 10 = -0.099504938 b = -0.099504938 Simplifying b = -0.099504938Solution
The solution to the problem is based on the solutions from the subproblems. b = {20.099504938, -0.099504938}
| 1-2n^2=-127 | | 5(4d^2-d)-9(d-2)= | | -x-3=-2x-8 | | 6y+19=7y+12 | | r^2=-6+7r | | X-3=1-7x+3 | | x^2-6x-9-8-6x=26 | | 2x-8=45 | | (-1.1111x)+2.6666=0 | | 1.1111x=2.6666 | | x+5+x=5x+25 | | 3x-8=5x(x-4) | | x+5+x=x+25 | | -38=-5n+7 | | 15x=x+7 | | 2.8-(-2.8)= | | K^2=9k-20 | | -38=-5+7 | | 3.4-2.2= | | (8x-3)+(-3x+9)=-4x-7 | | x^2+16x-65=-2 | | P^2-4p=32 | | 5(x-2)-(x-3)=7x-2(5-x) | | 4e^2x-2=164 | | 3t-4=-25 | | 123*.65= | | v^2+16v-65=-2 | | 5(x+1)-7=2x+3(-2+x) | | 3x^2=x^2+88 | | -5(1-5v)-8=-6-2(-2v-7) | | x^4+10x^2+1=0 | | X-9=66 |