If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying x2 + 20x + -40 = 0 Reorder the terms: -40 + 20x + x2 = 0 Solving -40 + 20x + x2 = 0 Solving for variable 'x'. Begin completing the square. Move the constant term to the right: Add '40' to each side of the equation. -40 + 20x + 40 + x2 = 0 + 40 Reorder the terms: -40 + 40 + 20x + x2 = 0 + 40 Combine like terms: -40 + 40 = 0 0 + 20x + x2 = 0 + 40 20x + x2 = 0 + 40 Combine like terms: 0 + 40 = 40 20x + x2 = 40 The x term is 20x. Take half its coefficient (10). Square it (100) and add it to both sides. Add '100' to each side of the equation. 20x + 100 + x2 = 40 + 100 Reorder the terms: 100 + 20x + x2 = 40 + 100 Combine like terms: 40 + 100 = 140 100 + 20x + x2 = 140 Factor a perfect square on the left side: (x + 10)(x + 10) = 140 Calculate the square root of the right side: 11.832159566 Break this problem into two subproblems by setting (x + 10) equal to 11.832159566 and -11.832159566.Subproblem 1
x + 10 = 11.832159566 Simplifying x + 10 = 11.832159566 Reorder the terms: 10 + x = 11.832159566 Solving 10 + x = 11.832159566 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-10' to each side of the equation. 10 + -10 + x = 11.832159566 + -10 Combine like terms: 10 + -10 = 0 0 + x = 11.832159566 + -10 x = 11.832159566 + -10 Combine like terms: 11.832159566 + -10 = 1.832159566 x = 1.832159566 Simplifying x = 1.832159566Subproblem 2
x + 10 = -11.832159566 Simplifying x + 10 = -11.832159566 Reorder the terms: 10 + x = -11.832159566 Solving 10 + x = -11.832159566 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-10' to each side of the equation. 10 + -10 + x = -11.832159566 + -10 Combine like terms: 10 + -10 = 0 0 + x = -11.832159566 + -10 x = -11.832159566 + -10 Combine like terms: -11.832159566 + -10 = -21.832159566 x = -21.832159566 Simplifying x = -21.832159566Solution
The solution to the problem is based on the solutions from the subproblems. x = {1.832159566, -21.832159566}
| -5y=7-42 | | 15*w=15 | | 8x+24x-8=8(4x+10) | | -17-y=3y-1 | | 3(4+n)=8-0.5n | | 8-3y=4y-13 | | z=sl | | 6x+4x-4=2(5x+7) | | y+11=2y+18 | | 6x+40=14x-42 | | 5y-6=3y-20 | | 1y-1y=-3x+3x+7+2 | | 6(t+y)-20=6t | | 3(x+2)=6(x-7) | | 7(y-3)=9y-21 | | 3x+80=440 | | 8y+2=30 | | 3y-2y+4=27 | | K^2=15 | | 13t+3(t+8.2)=37.5 | | x^3+x^2=6 | | 10x+5(3x-7)+9(3-2x)=2(2x+5)+15 | | 3x-5.5=x+24.5 | | 3x+25x-2=7(4x+7) | | 17(2-3x)+5(5x-6)=4(3-8x)+10 | | 2(3x+4)=14x-3 | | 6x-6x-3y+3y=-30+30 | | 2n+n=54 | | 8(3x-2)-13x=5(12-3x)+7x-19 | | 17n=4+16n | | (2x+9)(x-11)=0 | | x+2x+3x-5x=25 |