If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying x2 + 9x = 20 Reorder the terms: 9x + x2 = 20 Solving 9x + x2 = 20 Solving for variable 'x'. Reorder the terms: -20 + 9x + x2 = 20 + -20 Combine like terms: 20 + -20 = 0 -20 + 9x + x2 = 0 Begin completing the square. Move the constant term to the right: Add '20' to each side of the equation. -20 + 9x + 20 + x2 = 0 + 20 Reorder the terms: -20 + 20 + 9x + x2 = 0 + 20 Combine like terms: -20 + 20 = 0 0 + 9x + x2 = 0 + 20 9x + x2 = 0 + 20 Combine like terms: 0 + 20 = 20 9x + x2 = 20 The x term is 9x. Take half its coefficient (4.5). Square it (20.25) and add it to both sides. Add '20.25' to each side of the equation. 9x + 20.25 + x2 = 20 + 20.25 Reorder the terms: 20.25 + 9x + x2 = 20 + 20.25 Combine like terms: 20 + 20.25 = 40.25 20.25 + 9x + x2 = 40.25 Factor a perfect square on the left side: (x + 4.5)(x + 4.5) = 40.25 Calculate the square root of the right side: 6.34428877 Break this problem into two subproblems by setting (x + 4.5) equal to 6.34428877 and -6.34428877.Subproblem 1
x + 4.5 = 6.34428877 Simplifying x + 4.5 = 6.34428877 Reorder the terms: 4.5 + x = 6.34428877 Solving 4.5 + x = 6.34428877 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-4.5' to each side of the equation. 4.5 + -4.5 + x = 6.34428877 + -4.5 Combine like terms: 4.5 + -4.5 = 0.0 0.0 + x = 6.34428877 + -4.5 x = 6.34428877 + -4.5 Combine like terms: 6.34428877 + -4.5 = 1.84428877 x = 1.84428877 Simplifying x = 1.84428877Subproblem 2
x + 4.5 = -6.34428877 Simplifying x + 4.5 = -6.34428877 Reorder the terms: 4.5 + x = -6.34428877 Solving 4.5 + x = -6.34428877 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-4.5' to each side of the equation. 4.5 + -4.5 + x = -6.34428877 + -4.5 Combine like terms: 4.5 + -4.5 = 0.0 0.0 + x = -6.34428877 + -4.5 x = -6.34428877 + -4.5 Combine like terms: -6.34428877 + -4.5 = -10.84428877 x = -10.84428877 Simplifying x = -10.84428877Solution
The solution to the problem is based on the solutions from the subproblems. x = {1.84428877, -10.84428877}
| 94-7x=20x+19 | | 94-3x=3x+22 | | 9-9x=89 | | 5(x-1)=55 | | 2(2x+1)=94 | | 4(x-3)=5(x+1) | | a+6.1=2.3 | | 8m-3=21 | | 6(-3+5n)=-18-4n | | 2+2a=16 | | 11+4r=16 | | -0.25x+6=0.6x+28 | | 4-8x=140 | | -3+14t=-3 | | -3+14t=3 | | -0.25+6=0.6+28 | | 11a-44=-22 | | 10y-10=100 | | 9x-3=21 | | 2x-2+100=0 | | 6m-6=0 | | 15+5(y-4)+5= | | (2x+6)(3x-5)=10 | | 2y-8=18 | | -8(-3x+3)=7-7x | | -4n^2+6-16=-5n^2 | | 6y+8=14 | | x+x+2=100 | | 5y+53=108 | | 4s-16s=96 | | 11x+99=5x-50 | | x(2x+3)=65 |