2x^2+3x-34=0

Simple and best practice solution for 2x^2+3x-34=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+3x-34=0 equation:


Simplifying
2x2 + 3x + -34 = 0

Reorder the terms:
-34 + 3x + 2x2 = 0

Solving
-34 + 3x + 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 + 1.5x + x2 = 0

Move the constant term to the right:

Add '17' to each side of the equation.
-17 + 1.5x + 17 + x2 = 0 + 17

Reorder the terms:
-17 + 17 + 1.5x + x2 = 0 + 17

Combine like terms: -17 + 17 = 0
0 + 1.5x + x2 = 0 + 17
1.5x + x2 = 0 + 17

Combine like terms: 0 + 17 = 17
1.5x + x2 = 17

The x term is 1.5x.  Take half its coefficient (0.75).
Square it (0.5625) and add it to both sides.

Add '0.5625' to each side of the equation.
1.5x + 0.5625 + x2 = 17 + 0.5625

Reorder the terms:
0.5625 + 1.5x + x2 = 17 + 0.5625

Combine like terms: 17 + 0.5625 = 17.5625
0.5625 + 1.5x + x2 = 17.5625

Factor a perfect square on the left side:
(x + 0.75)(x + 0.75) = 17.5625

Calculate the square root of the right side: 4.190763654

Break this problem into two subproblems by setting 
(x + 0.75) equal to 4.190763654 and -4.190763654.

Subproblem 1

x + 0.75 = 4.190763654 Simplifying x + 0.75 = 4.190763654 Reorder the terms: 0.75 + x = 4.190763654 Solving 0.75 + x = 4.190763654 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.75' to each side of the equation. 0.75 + -0.75 + x = 4.190763654 + -0.75 Combine like terms: 0.75 + -0.75 = 0.00 0.00 + x = 4.190763654 + -0.75 x = 4.190763654 + -0.75 Combine like terms: 4.190763654 + -0.75 = 3.440763654 x = 3.440763654 Simplifying x = 3.440763654

Subproblem 2

x + 0.75 = -4.190763654 Simplifying x + 0.75 = -4.190763654 Reorder the terms: 0.75 + x = -4.190763654 Solving 0.75 + x = -4.190763654 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.75' to each side of the equation. 0.75 + -0.75 + x = -4.190763654 + -0.75 Combine like terms: 0.75 + -0.75 = 0.00 0.00 + x = -4.190763654 + -0.75 x = -4.190763654 + -0.75 Combine like terms: -4.190763654 + -0.75 = -4.940763654 x = -4.940763654 Simplifying x = -4.940763654

Solution

The solution to the problem is based on the solutions from the subproblems. x = {3.440763654, -4.940763654}

See similar equations:

| (5x+4)+(4x+6)+(3x+15)= | | D^2+d-30=0 | | K^2-10k=24 | | 12+x^3=1137 | | k^2=-61 | | k^2=-21 | | 4x-8=12-8x | | 3.2y-4.6=0.7y+0.4 | | 9p^2+9=909 | | 3(x-5)-10= | | 9p^2+9=900 | | x-6y=-25 | | 6a^2+2=38 | | 200=8,5/(r-0,075) | | 7v^2-10-557=0 | | 5m^2=45 | | (9x-9)(8x+4)=0 | | 15+12x-6=12+2x+2 | | (x^2-5x+9)=(x-6) | | 4(x-1)-3(2x-5)=4(3x+2) | | 8sin(x/2) | | sin(10x)-cos(4x)+sin(2x)=0 | | 2In(3x)= | | 64:2x=8 | | 16-1/2x=30-2,1/2x | | 4m-15=2m+5 | | 45=30+n | | 20+r=-9r | | y=1e-05x | | S=a(30+7n) | | 4+2J+3Y=0 | | 15-N=-11 |

Equations solver categories