9x^2-14x-208=0

Simple and best practice solution for 9x^2-14x-208=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 9x^2-14x-208=0 equation:


Simplifying
9x2 + -14x + -208 = 0

Reorder the terms:
-208 + -14x + 9x2 = 0

Solving
-208 + -14x + 9x2 = 0

Solving for variable 'x'.

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

Divide each side by '9'.
-23.11111111 + -1.555555556x + x2 = 0

Move the constant term to the right:

Add '23.11111111' to each side of the equation.
-23.11111111 + -1.555555556x + 23.11111111 + x2 = 0 + 23.11111111

Reorder the terms:
-23.11111111 + 23.11111111 + -1.555555556x + x2 = 0 + 23.11111111

Combine like terms: -23.11111111 + 23.11111111 = 0.00000000
0.00000000 + -1.555555556x + x2 = 0 + 23.11111111
-1.555555556x + x2 = 0 + 23.11111111

Combine like terms: 0 + 23.11111111 = 23.11111111
-1.555555556x + x2 = 23.11111111

The x term is -1.555555556x.  Take half its coefficient (-0.777777778).
Square it (0.6049382720) and add it to both sides.

Add '0.6049382720' to each side of the equation.
-1.555555556x + 0.6049382720 + x2 = 23.11111111 + 0.6049382720

Reorder the terms:
0.6049382720 + -1.555555556x + x2 = 23.11111111 + 0.6049382720

Combine like terms: 23.11111111 + 0.6049382720 = 23.716049382
0.6049382720 + -1.555555556x + x2 = 23.716049382

Factor a perfect square on the left side:
(x + -0.777777778)(x + -0.777777778) = 23.716049382

Calculate the square root of the right side: 4.869912667

Break this problem into two subproblems by setting 
(x + -0.777777778) equal to 4.869912667 and -4.869912667.

Subproblem 1

x + -0.777777778 = 4.869912667 Simplifying x + -0.777777778 = 4.869912667 Reorder the terms: -0.777777778 + x = 4.869912667 Solving -0.777777778 + x = 4.869912667 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.777777778' to each side of the equation. -0.777777778 + 0.777777778 + x = 4.869912667 + 0.777777778 Combine like terms: -0.777777778 + 0.777777778 = 0.000000000 0.000000000 + x = 4.869912667 + 0.777777778 x = 4.869912667 + 0.777777778 Combine like terms: 4.869912667 + 0.777777778 = 5.647690445 x = 5.647690445 Simplifying x = 5.647690445

Subproblem 2

x + -0.777777778 = -4.869912667 Simplifying x + -0.777777778 = -4.869912667 Reorder the terms: -0.777777778 + x = -4.869912667 Solving -0.777777778 + x = -4.869912667 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.777777778' to each side of the equation. -0.777777778 + 0.777777778 + x = -4.869912667 + 0.777777778 Combine like terms: -0.777777778 + 0.777777778 = 0.000000000 0.000000000 + x = -4.869912667 + 0.777777778 x = -4.869912667 + 0.777777778 Combine like terms: -4.869912667 + 0.777777778 = -4.092134889 x = -4.092134889 Simplifying x = -4.092134889

Solution

The solution to the problem is based on the solutions from the subproblems. x = {5.647690445, -4.092134889}

See similar equations:

| 4p+2q=22 | | (4x-5)(3x-1)-(2x-7)(6x+7)+54=0 | | (4x-5)(3x-1)-(2x-7)(6x+5)-1=0 | | 6(4a+3)-13a=5(3a-1)-1 | | x^2+4x-206=0 | | t-2(3t-1)+8=10 | | 16x^3-4x=0 | | (3x^3)-3x=0 | | s-6=48 | | 2x^2-71x+108=0 | | 15h+4-8h+7=32 | | 2(3x-4)=18 | | 103-2x=6+7 | | 14a=7 | | 16n^2+30n-25=0 | | 42=7w | | x+x=6 | | p-15=13-5p | | 9y-9=4y+6 | | -5+15=16x-2-15x | | 6y-16y=-40-50 | | -8c+1=-7 | | 3(3c-1)-4=4c+8 | | 42+4y-15=15y-9-5y | | 14-m=-7 | | 3g-6(g-7)=42 | | 2(3X+5)-2(7X-3)=X+7 | | 3x^3-X^2-15X+5=0 | | 9+x=7 | | 16=x+4 | | 8x+14-7x=-4-12 | | 27x-.3x^2=0 |

Equations solver categories