2x^2+14x-15x-35=0

Simple and best practice solution for 2x^2+14x-15x-35=0 equation. Check how easy it is, and learn it for the future. Our solution is simple, and easy to understand, so don`t hesitate to use it as a solution of your homework.

If it's not what You are looking for type in the equation solver your own equation and let us solve it.

Solution for 2x^2+14x-15x-35=0 equation:


Simplifying
2x2 + 14x + -15x + -35 = 0

Reorder the terms:
-35 + 14x + -15x + 2x2 = 0

Combine like terms: 14x + -15x = -1x
-35 + -1x + 2x2 = 0

Solving
-35 + -1x + 2x2 = 0

Solving for variable 'x'.

Begin completing the square.  Divide all terms by
2 the coefficient of the squared term: 

Divide each side by '2'.
-17.5 + -0.5x + x2 = 0

Move the constant term to the right:

Add '17.5' to each side of the equation.
-17.5 + -0.5x + 17.5 + x2 = 0 + 17.5

Reorder the terms:
-17.5 + 17.5 + -0.5x + x2 = 0 + 17.5

Combine like terms: -17.5 + 17.5 = 0.0
0.0 + -0.5x + x2 = 0 + 17.5
-0.5x + x2 = 0 + 17.5

Combine like terms: 0 + 17.5 = 17.5
-0.5x + x2 = 17.5

The x term is -0.5x.  Take half its coefficient (-0.25).
Square it (0.0625) and add it to both sides.

Add '0.0625' to each side of the equation.
-0.5x + 0.0625 + x2 = 17.5 + 0.0625

Reorder the terms:
0.0625 + -0.5x + x2 = 17.5 + 0.0625

Combine like terms: 17.5 + 0.0625 = 17.5625
0.0625 + -0.5x + x2 = 17.5625

Factor a perfect square on the left side:
(x + -0.25)(x + -0.25) = 17.5625

Calculate the square root of the right side: 4.190763654

Break this problem into two subproblems by setting 
(x + -0.25) equal to 4.190763654 and -4.190763654.

Subproblem 1

x + -0.25 = 4.190763654 Simplifying x + -0.25 = 4.190763654 Reorder the terms: -0.25 + x = 4.190763654 Solving -0.25 + x = 4.190763654 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.25' to each side of the equation. -0.25 + 0.25 + x = 4.190763654 + 0.25 Combine like terms: -0.25 + 0.25 = 0.00 0.00 + x = 4.190763654 + 0.25 x = 4.190763654 + 0.25 Combine like terms: 4.190763654 + 0.25 = 4.440763654 x = 4.440763654 Simplifying x = 4.440763654

Subproblem 2

x + -0.25 = -4.190763654 Simplifying x + -0.25 = -4.190763654 Reorder the terms: -0.25 + x = -4.190763654 Solving -0.25 + x = -4.190763654 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.25' to each side of the equation. -0.25 + 0.25 + x = -4.190763654 + 0.25 Combine like terms: -0.25 + 0.25 = 0.00 0.00 + x = -4.190763654 + 0.25 x = -4.190763654 + 0.25 Combine like terms: -4.190763654 + 0.25 = -3.940763654 x = -3.940763654 Simplifying x = -3.940763654

Solution

The solution to the problem is based on the solutions from the subproblems. x = {4.440763654, -3.940763654}

See similar equations:

| 10x+2=5x+8 | | 12=3h-30 | | 2xx+x+1=0 | | 686z-2z^7=0 | | 9+1x=14 | | x+6(3-3x)=35 | | 5x-15=-0 | | x+74+109=180 | | 3-3*8+2=-17 | | 3y+15=4y+6 | | 6x+3=331 | | 3x-5(1)=-6 | | 6+8=22 | | 2(3x+18)=14 | | 3m^2-5m-2= | | 7b-6=2+5b | | 3x-5(-1)=-6 | | 7x+20y=280 | | -3+8-(-29)-11= | | 4d+9=41 | | 24x^2-42x+9=0 | | 5(2y+12)+3y=12 | | 2(3x)+2(2x+22)+(x+41)=360 | | x+y=15200 | | 6+2c= | | 4(x+x+1+x+2)=180 | | 200=1.1x+0.06x^2 | | x+1.125x=860 | | 1.57x+6=-16 | | 5x+y+1=-9+8y-x | | 11.57x+6=-16 | | 27=6-3b |

Equations solver categories