0=9x^2+5x-53

Simple and best practice solution for 0=9x^2+5x-53 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 0=9x^2+5x-53 equation:


Simplifying
0 = 9x2 + 5x + -53

Reorder the terms:
0 = -53 + 5x + 9x2

Solving
0 = -53 + 5x + 9x2

Solving for variable 'x'.

Combine like terms: 0 + 53 = 53
53 + -5x + -9x2 = -53 + 5x + 9x2 + 53 + -5x + -9x2

Reorder the terms:
53 + -5x + -9x2 = -53 + 53 + 5x + -5x + 9x2 + -9x2

Combine like terms: -53 + 53 = 0
53 + -5x + -9x2 = 0 + 5x + -5x + 9x2 + -9x2
53 + -5x + -9x2 = 5x + -5x + 9x2 + -9x2

Combine like terms: 5x + -5x = 0
53 + -5x + -9x2 = 0 + 9x2 + -9x2
53 + -5x + -9x2 = 9x2 + -9x2

Combine like terms: 9x2 + -9x2 = 0
53 + -5x + -9x2 = 0

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

Divide each side by '-9'.
-5.888888889 + 0.5555555556x + x2 = 0

Move the constant term to the right:

Add '5.888888889' to each side of the equation.
-5.888888889 + 0.5555555556x + 5.888888889 + x2 = 0 + 5.888888889

Reorder the terms:
-5.888888889 + 5.888888889 + 0.5555555556x + x2 = 0 + 5.888888889

Combine like terms: -5.888888889 + 5.888888889 = 0.000000000
0.000000000 + 0.5555555556x + x2 = 0 + 5.888888889
0.5555555556x + x2 = 0 + 5.888888889

Combine like terms: 0 + 5.888888889 = 5.888888889
0.5555555556x + x2 = 5.888888889

The x term is 0.5555555556x.  Take half its coefficient (0.2777777778).
Square it (0.07716049384) and add it to both sides.

Add '0.07716049384' to each side of the equation.
0.5555555556x + 0.07716049384 + x2 = 5.888888889 + 0.07716049384

Reorder the terms:
0.07716049384 + 0.5555555556x + x2 = 5.888888889 + 0.07716049384

Combine like terms: 5.888888889 + 0.07716049384 = 5.96604938284
0.07716049384 + 0.5555555556x + x2 = 5.96604938284

Factor a perfect square on the left side:
(x + 0.2777777778)(x + 0.2777777778) = 5.96604938284

Calculate the square root of the right side: 2.442549771

Break this problem into two subproblems by setting 
(x + 0.2777777778) equal to 2.442549771 and -2.442549771.

Subproblem 1

x + 0.2777777778 = 2.442549771 Simplifying x + 0.2777777778 = 2.442549771 Reorder the terms: 0.2777777778 + x = 2.442549771 Solving 0.2777777778 + x = 2.442549771 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.2777777778' to each side of the equation. 0.2777777778 + -0.2777777778 + x = 2.442549771 + -0.2777777778 Combine like terms: 0.2777777778 + -0.2777777778 = 0.0000000000 0.0000000000 + x = 2.442549771 + -0.2777777778 x = 2.442549771 + -0.2777777778 Combine like terms: 2.442549771 + -0.2777777778 = 2.1647719932 x = 2.1647719932 Simplifying x = 2.1647719932

Subproblem 2

x + 0.2777777778 = -2.442549771 Simplifying x + 0.2777777778 = -2.442549771 Reorder the terms: 0.2777777778 + x = -2.442549771 Solving 0.2777777778 + x = -2.442549771 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.2777777778' to each side of the equation. 0.2777777778 + -0.2777777778 + x = -2.442549771 + -0.2777777778 Combine like terms: 0.2777777778 + -0.2777777778 = 0.0000000000 0.0000000000 + x = -2.442549771 + -0.2777777778 x = -2.442549771 + -0.2777777778 Combine like terms: -2.442549771 + -0.2777777778 = -2.7203275488 x = -2.7203275488 Simplifying x = -2.7203275488

Solution

The solution to the problem is based on the solutions from the subproblems. x = {2.1647719932, -2.7203275488}

See similar equations:

| e-59=24 | | 37.7=2(3.14)(r) | | 30-18=4(x-6) | | e+85=94 | | 37.7=2(3.14) | | 71=b+26 | | 16+2(5-X)=19-3(X+2) | | 50-7x=20x+17 | | 2=e-77 | | 70=t+33 | | 6(y-6)=5(4+y) | | d-17=26 | | 33=9+13+c | | q+15=96 | | -5=5+m | | -5r+2=27 | | 30=b(10) | | 29=-9v | | r=10.4 | | 10-(4z-8)=9-5z | | 15(x+2)-6=18 | | 6+-1=11 | | 450=9x | | -11(x+3)+4(4x-3)=4(x-6)+8 | | -100-9x=8x-19 | | 3x^2-4x+7=0 | | -3x-12=15 | | n+6=12.5 | | 6(w-5)=5(6+w) | | 2y+11=26-y | | 92=6x+4(x+2) | | 25x+(3*5)=16 |

Equations solver categories