9x^2+28x-34=6

Simple and best practice solution for 9x^2+28x-34=6 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 9x^2+28x-34=6 equation:


Simplifying
9x2 + 28x + -34 = 6

Reorder the terms:
-34 + 28x + 9x2 = 6

Solving
-34 + 28x + 9x2 = 6

Solving for variable 'x'.

Reorder the terms:
-34 + -6 + 28x + 9x2 = 6 + -6

Combine like terms: -34 + -6 = -40
-40 + 28x + 9x2 = 6 + -6

Combine like terms: 6 + -6 = 0
-40 + 28x + 9x2 = 0

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

Divide each side by '9'.
-4.444444444 + 3.111111111x + x2 = 0

Move the constant term to the right:

Add '4.444444444' to each side of the equation.
-4.444444444 + 3.111111111x + 4.444444444 + x2 = 0 + 4.444444444

Reorder the terms:
-4.444444444 + 4.444444444 + 3.111111111x + x2 = 0 + 4.444444444

Combine like terms: -4.444444444 + 4.444444444 = 0.000000000
0.000000000 + 3.111111111x + x2 = 0 + 4.444444444
3.111111111x + x2 = 0 + 4.444444444

Combine like terms: 0 + 4.444444444 = 4.444444444
3.111111111x + x2 = 4.444444444

The x term is 3.111111111x.  Take half its coefficient (1.555555556).
Square it (2.419753088) and add it to both sides.

Add '2.419753088' to each side of the equation.
3.111111111x + 2.419753088 + x2 = 4.444444444 + 2.419753088

Reorder the terms:
2.419753088 + 3.111111111x + x2 = 4.444444444 + 2.419753088

Combine like terms: 4.444444444 + 2.419753088 = 6.864197532
2.419753088 + 3.111111111x + x2 = 6.864197532

Factor a perfect square on the left side:
(x + 1.555555556)(x + 1.555555556) = 6.864197532

Calculate the square root of the right side: 2.619961361

Break this problem into two subproblems by setting 
(x + 1.555555556) equal to 2.619961361 and -2.619961361.

Subproblem 1

x + 1.555555556 = 2.619961361 Simplifying x + 1.555555556 = 2.619961361 Reorder the terms: 1.555555556 + x = 2.619961361 Solving 1.555555556 + x = 2.619961361 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1.555555556' to each side of the equation. 1.555555556 + -1.555555556 + x = 2.619961361 + -1.555555556 Combine like terms: 1.555555556 + -1.555555556 = 0.000000000 0.000000000 + x = 2.619961361 + -1.555555556 x = 2.619961361 + -1.555555556 Combine like terms: 2.619961361 + -1.555555556 = 1.064405805 x = 1.064405805 Simplifying x = 1.064405805

Subproblem 2

x + 1.555555556 = -2.619961361 Simplifying x + 1.555555556 = -2.619961361 Reorder the terms: 1.555555556 + x = -2.619961361 Solving 1.555555556 + x = -2.619961361 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1.555555556' to each side of the equation. 1.555555556 + -1.555555556 + x = -2.619961361 + -1.555555556 Combine like terms: 1.555555556 + -1.555555556 = 0.000000000 0.000000000 + x = -2.619961361 + -1.555555556 x = -2.619961361 + -1.555555556 Combine like terms: -2.619961361 + -1.555555556 = -4.175516917 x = -4.175516917 Simplifying x = -4.175516917

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1.064405805, -4.175516917}

See similar equations:

| 2x=1.1263 | | 6x-5=x-7 | | m-4-5=11 | | -5=5+f | | 5m+3=8n+7 | | 4(0)+x=-5 | | 10r-4r=3r+18 | | 5u+10=7u | | (3+7i)*(-5-2i)=-1-41i | | 40=60+20p | | -2-3k=2k+8 | | 1+3n-5=11+6n | | 5y-2=x+13 | | 5x+4=-18 | | 6c-7=5c+15 | | (-5-2i)*(3+7i)=0 | | 3b+18=6b-9 | | y-3=18 | | 4(c+4)=2c+2(c+8) | | 3b+18=6b-9 | | 10x^2+20x-30=8 | | 2(w-2)=16 | | x^2+(-1+y)=13 | | 4a+2a-2=16 | | -9=1-4K-k | | -2k-4=1-k | | 17=4n+1 | | 3x+4x+4=25 | | 1.6=4y+19.2 | | 49a^2-7=-3 | | 2a+6a=-16 | | 4f-8+3f-f+9=25 |

Equations solver categories