If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying b2 + -1b + -20 = 20 Reorder the terms: -20 + -1b + b2 = 20 Solving -20 + -1b + b2 = 20 Solving for variable 'b'. Reorder the terms: -20 + -20 + -1b + b2 = 20 + -20 Combine like terms: -20 + -20 = -40 -40 + -1b + b2 = 20 + -20 Combine like terms: 20 + -20 = 0 -40 + -1b + b2 = 0 Begin completing the square. Move the constant term to the right: Add '40' to each side of the equation. -40 + -1b + 40 + b2 = 0 + 40 Reorder the terms: -40 + 40 + -1b + b2 = 0 + 40 Combine like terms: -40 + 40 = 0 0 + -1b + b2 = 0 + 40 -1b + b2 = 0 + 40 Combine like terms: 0 + 40 = 40 -1b + b2 = 40 The b term is -1b. Take half its coefficient (-0.5). Square it (0.25) and add it to both sides. Add '0.25' to each side of the equation. -1b + 0.25 + b2 = 40 + 0.25 Reorder the terms: 0.25 + -1b + b2 = 40 + 0.25 Combine like terms: 40 + 0.25 = 40.25 0.25 + -1b + b2 = 40.25 Factor a perfect square on the left side: (b + -0.5)(b + -0.5) = 40.25 Calculate the square root of the right side: 6.34428877 Break this problem into two subproblems by setting (b + -0.5) equal to 6.34428877 and -6.34428877.Subproblem 1
b + -0.5 = 6.34428877 Simplifying b + -0.5 = 6.34428877 Reorder the terms: -0.5 + b = 6.34428877 Solving -0.5 + b = 6.34428877 Solving for variable 'b'. Move all terms containing b to the left, all other terms to the right. Add '0.5' to each side of the equation. -0.5 + 0.5 + b = 6.34428877 + 0.5 Combine like terms: -0.5 + 0.5 = 0.0 0.0 + b = 6.34428877 + 0.5 b = 6.34428877 + 0.5 Combine like terms: 6.34428877 + 0.5 = 6.84428877 b = 6.84428877 Simplifying b = 6.84428877Subproblem 2
b + -0.5 = -6.34428877 Simplifying b + -0.5 = -6.34428877 Reorder the terms: -0.5 + b = -6.34428877 Solving -0.5 + b = -6.34428877 Solving for variable 'b'. Move all terms containing b to the left, all other terms to the right. Add '0.5' to each side of the equation. -0.5 + 0.5 + b = -6.34428877 + 0.5 Combine like terms: -0.5 + 0.5 = 0.0 0.0 + b = -6.34428877 + 0.5 b = -6.34428877 + 0.5 Combine like terms: -6.34428877 + 0.5 = -5.84428877 b = -5.84428877 Simplifying b = -5.84428877Solution
The solution to the problem is based on the solutions from the subproblems. b = {6.84428877, -5.84428877}
| -7n=70 | | 5xy^2-3x+2y^2+7x+13xy^2= | | 97-9x=-47 | | 10x^2+6x=4 | | 11x+39=x-61 | | (8)n=48 | | 8k-5k=2-6+6k+1 | | a-18=-15 | | 64-8k=72 | | 4x(3x-7)-19x^2= | | (6)m=45 | | -14=n-1 | | 6d+11=3d+47 | | -16+3k=-28 | | 7x+7=8x+31 | | 43=3c | | 10=p+10 | | X^3-6x^2=x-30 | | -21=a-1 | | 2x+78=4x+24 | | .75y+8=23 | | 7(3x+8)=107 | | 3(x)+4=10 | | 3(y+6)fory=2 | | .4x-2+.5x=-1.28 | | 69=18-29 | | f(x)=(x^2)+11x | | -4(-6x-1)-4x=1 | | 8x^7+12x^4+24x^3= | | 2y-10=2 | | -9.2(3-x)=55.2 | | j-3.7=20.4 |