9x^2+14x+4=0

Simple and best practice solution for 9x^2+14x+4=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+4=0 equation:


Simplifying
9x2 + 14x + 4 = 0

Reorder the terms:
4 + 14x + 9x2 = 0

Solving
4 + 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'.
0.4444444444 + 1.555555556x + x2 = 0

Move the constant term to the right:

Add '-0.4444444444' to each side of the equation.
0.4444444444 + 1.555555556x + -0.4444444444 + x2 = 0 + -0.4444444444

Reorder the terms:
0.4444444444 + -0.4444444444 + 1.555555556x + x2 = 0 + -0.4444444444

Combine like terms: 0.4444444444 + -0.4444444444 = 0.0000000000
0.0000000000 + 1.555555556x + x2 = 0 + -0.4444444444
1.555555556x + x2 = 0 + -0.4444444444

Combine like terms: 0 + -0.4444444444 = -0.4444444444
1.555555556x + x2 = -0.4444444444

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 = -0.4444444444 + 0.6049382720

Reorder the terms:
0.6049382720 + 1.555555556x + x2 = -0.4444444444 + 0.6049382720

Combine like terms: -0.4444444444 + 0.6049382720 = 0.1604938276
0.6049382720 + 1.555555556x + x2 = 0.1604938276

Factor a perfect square on the left side:
(x + 0.777777778)(x + 0.777777778) = 0.1604938276

Calculate the square root of the right side: 0.400616809

Break this problem into two subproblems by setting 
(x + 0.777777778) equal to 0.400616809 and -0.400616809.

Subproblem 1

x + 0.777777778 = 0.400616809 Simplifying x + 0.777777778 = 0.400616809 Reorder the terms: 0.777777778 + x = 0.400616809 Solving 0.777777778 + x = 0.400616809 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 = 0.400616809 + -0.777777778 Combine like terms: 0.777777778 + -0.777777778 = 0.000000000 0.000000000 + x = 0.400616809 + -0.777777778 x = 0.400616809 + -0.777777778 Combine like terms: 0.400616809 + -0.777777778 = -0.377160969 x = -0.377160969 Simplifying x = -0.377160969

Subproblem 2

x + 0.777777778 = -0.400616809 Simplifying x + 0.777777778 = -0.400616809 Reorder the terms: 0.777777778 + x = -0.400616809 Solving 0.777777778 + x = -0.400616809 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 = -0.400616809 + -0.777777778 Combine like terms: 0.777777778 + -0.777777778 = 0.000000000 0.000000000 + x = -0.400616809 + -0.777777778 x = -0.400616809 + -0.777777778 Combine like terms: -0.400616809 + -0.777777778 = -1.178394587 x = -1.178394587 Simplifying x = -1.178394587

Solution

The solution to the problem is based on the solutions from the subproblems. x = {-0.377160969, -1.178394587}

See similar equations:

| x+(x-7)+(x-4)=166 | | 0.75m+6=9 | | 9(x+2)=3x-6 | | 0.75+6=9 | | 4x+9+134=180 | | .03x=120 | | 21-4b=5 | | -25+2q=-57 | | 9.1+0.7= | | 16X+34=17X+39 | | 2 = q4– 1 | | 0.5(12-10y)=y | | 13-3p=1 | | 5p+8q=33 | | x+(24.5)=37 | | 4k-10=2 | | (-5-6i)(-5+6i)= | | (d-4)5=-26 | | 7a-4-2a=19+3a+3 | | 9(6-p)=36 | | y-6=m(x-3) | | 9x^2+72x= | | 12=3(x-3)-(x-5) | | 0.10(37+-1y)+0.25=6.40 | | 8x-12+3x+5=180 | | 5=3j+2 | | 5x-y-12z=61 | | 2(3-x)=5x-1 | | 0.33x+(-9)=-3 | | 2a+(2*0.5)=24 | | 5g^3=130 | | 3-(-5)=x |

Equations solver categories