If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying x2 + 14x + -42 = 0 Reorder the terms: -42 + 14x + x2 = 0 Solving -42 + 14x + x2 = 0 Solving for variable 'x'. Begin completing the square. Move the constant term to the right: Add '42' to each side of the equation. -42 + 14x + 42 + x2 = 0 + 42 Reorder the terms: -42 + 42 + 14x + x2 = 0 + 42 Combine like terms: -42 + 42 = 0 0 + 14x + x2 = 0 + 42 14x + x2 = 0 + 42 Combine like terms: 0 + 42 = 42 14x + x2 = 42 The x term is 14x. Take half its coefficient (7). Square it (49) and add it to both sides. Add '49' to each side of the equation. 14x + 49 + x2 = 42 + 49 Reorder the terms: 49 + 14x + x2 = 42 + 49 Combine like terms: 42 + 49 = 91 49 + 14x + x2 = 91 Factor a perfect square on the left side: (x + 7)(x + 7) = 91 Calculate the square root of the right side: 9.539392014 Break this problem into two subproblems by setting (x + 7) equal to 9.539392014 and -9.539392014.Subproblem 1
x + 7 = 9.539392014 Simplifying x + 7 = 9.539392014 Reorder the terms: 7 + x = 9.539392014 Solving 7 + x = 9.539392014 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -7 + x = 9.539392014 + -7 Combine like terms: 7 + -7 = 0 0 + x = 9.539392014 + -7 x = 9.539392014 + -7 Combine like terms: 9.539392014 + -7 = 2.539392014 x = 2.539392014 Simplifying x = 2.539392014Subproblem 2
x + 7 = -9.539392014 Simplifying x + 7 = -9.539392014 Reorder the terms: 7 + x = -9.539392014 Solving 7 + x = -9.539392014 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -7 + x = -9.539392014 + -7 Combine like terms: 7 + -7 = 0 0 + x = -9.539392014 + -7 x = -9.539392014 + -7 Combine like terms: -9.539392014 + -7 = -16.539392014 x = -16.539392014 Simplifying x = -16.539392014Solution
The solution to the problem is based on the solutions from the subproblems. x = {2.539392014, -16.539392014}
| -9(8-m)-13=15 | | 12x-25=4(2x+8)+1 | | 24-44=3(x-1)-8 | | 42x^9/14x^3 | | -16tsquared+48t+64= | | 25x^2y^2=9 | | 3-4(x-2)-(3-x)=6+(2x+3) | | 2(x+11)=4(3x+1)+12 | | 2(3k-1)-3(2k+1)=2(5k-2)+5 | | 7(2+5x)=119 | | x^2=9.22 | | 14-2x=-46 | | 2y-y=-1-2y | | 2k^2-8k= | | 6x^2-30x+8=0 | | 5(2y+7)=3y-1 | | z^2-15z=0 | | 7x-6=x-2 | | 3x+16=42 | | 3p-1=-2 | | 3(2x-5)+7x=3x+35 | | 3/4x-2 | | -5x^2+4x=91 | | 1.2c+2.6c=4.55 | | 2/7(x-5/4)=-1/7 | | -3(4x+5)=-63 | | 5(x-9)=2(x+7) | | T-6=10 | | H=-16t^2+38t+104 | | 10x=4-(-16) | | 2x-4n=7-n | | ax+bx-9=-10 |