If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying 5x2 + 21x + -42 = 0 Reorder the terms: -42 + 21x + 5x2 = 0 Solving -42 + 21x + 5x2 = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by 5 the coefficient of the squared term: Divide each side by '5'. -8.4 + 4.2x + x2 = 0 Move the constant term to the right: Add '8.4' to each side of the equation. -8.4 + 4.2x + 8.4 + x2 = 0 + 8.4 Reorder the terms: -8.4 + 8.4 + 4.2x + x2 = 0 + 8.4 Combine like terms: -8.4 + 8.4 = 0.0 0.0 + 4.2x + x2 = 0 + 8.4 4.2x + x2 = 0 + 8.4 Combine like terms: 0 + 8.4 = 8.4 4.2x + x2 = 8.4 The x term is 4.2x. Take half its coefficient (2.1). Square it (4.41) and add it to both sides. Add '4.41' to each side of the equation. 4.2x + 4.41 + x2 = 8.4 + 4.41 Reorder the terms: 4.41 + 4.2x + x2 = 8.4 + 4.41 Combine like terms: 8.4 + 4.41 = 12.81 4.41 + 4.2x + x2 = 12.81 Factor a perfect square on the left side: (x + 2.1)(x + 2.1) = 12.81 Calculate the square root of the right side: 3.579106034 Break this problem into two subproblems by setting (x + 2.1) equal to 3.579106034 and -3.579106034.Subproblem 1
x + 2.1 = 3.579106034 Simplifying x + 2.1 = 3.579106034 Reorder the terms: 2.1 + x = 3.579106034 Solving 2.1 + x = 3.579106034 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2.1' to each side of the equation. 2.1 + -2.1 + x = 3.579106034 + -2.1 Combine like terms: 2.1 + -2.1 = 0.0 0.0 + x = 3.579106034 + -2.1 x = 3.579106034 + -2.1 Combine like terms: 3.579106034 + -2.1 = 1.479106034 x = 1.479106034 Simplifying x = 1.479106034Subproblem 2
x + 2.1 = -3.579106034 Simplifying x + 2.1 = -3.579106034 Reorder the terms: 2.1 + x = -3.579106034 Solving 2.1 + x = -3.579106034 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2.1' to each side of the equation. 2.1 + -2.1 + x = -3.579106034 + -2.1 Combine like terms: 2.1 + -2.1 = 0.0 0.0 + x = -3.579106034 + -2.1 x = -3.579106034 + -2.1 Combine like terms: -3.579106034 + -2.1 = -5.679106034 x = -5.679106034 Simplifying x = -5.679106034Solution
The solution to the problem is based on the solutions from the subproblems. x = {1.479106034, -5.679106034}
| Z=P+Pdy | | N-17=19 | | -1-5t-2=4 | | -128=-7x-5(-5+4) | | -8(x-3)=-8x-24 | | 7m+2=4m-18 | | 5x^2+2=123 | | -2a=34 | | 11-s=2 | | x^3+3x^2=10x | | 3p=a-pt | | 38-N=1 | | 3(-1)+7=3g+4 | | 60-x+6x+2=118-2x | | 38-N= | | 5w-8w=56 | | 9m+10=-37 | | S=3.14+9c | | 12(x+3)=4(x+12)+6 | | 3g+4(-7+3g)=1-g | | 4e^5t=6e^4t | | -10x+6x+8=8 | | 6(x-4)-7=-31 | | 12(x+3)=4(x+48)+6x | | X(x+5)=342 | | 90x=c+35 | | 9x-18=42+5x | | 6-y=15x | | 118=6x-4(-7x+13) | | 64d^3-48d^2-4d+3=0 | | -5(n+2)=55(n+6) | | -2c+5d=11ford |