9x^2+63x+4=0

Simple and best practice solution for 9x^2+63x+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+63x+4=0 equation:


Simplifying
9x2 + 63x + 4 = 0

Reorder the terms:
4 + 63x + 9x2 = 0

Solving
4 + 63x + 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 + 7x + x2 = 0

Move the constant term to the right:

Add '-0.4444444444' to each side of the equation.
0.4444444444 + 7x + -0.4444444444 + x2 = 0 + -0.4444444444

Reorder the terms:
0.4444444444 + -0.4444444444 + 7x + x2 = 0 + -0.4444444444

Combine like terms: 0.4444444444 + -0.4444444444 = 0.0000000000
0.0000000000 + 7x + x2 = 0 + -0.4444444444
7x + x2 = 0 + -0.4444444444

Combine like terms: 0 + -0.4444444444 = -0.4444444444
7x + x2 = -0.4444444444

The x term is 7x.  Take half its coefficient (3.5).
Square it (12.25) and add it to both sides.

Add '12.25' to each side of the equation.
7x + 12.25 + x2 = -0.4444444444 + 12.25

Reorder the terms:
12.25 + 7x + x2 = -0.4444444444 + 12.25

Combine like terms: -0.4444444444 + 12.25 = 11.8055555556
12.25 + 7x + x2 = 11.8055555556

Factor a perfect square on the left side:
(x + 3.5)(x + 3.5) = 11.8055555556

Calculate the square root of the right side: 3.435921355

Break this problem into two subproblems by setting 
(x + 3.5) equal to 3.435921355 and -3.435921355.

Subproblem 1

x + 3.5 = 3.435921355 Simplifying x + 3.5 = 3.435921355 Reorder the terms: 3.5 + x = 3.435921355 Solving 3.5 + x = 3.435921355 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-3.5' to each side of the equation. 3.5 + -3.5 + x = 3.435921355 + -3.5 Combine like terms: 3.5 + -3.5 = 0.0 0.0 + x = 3.435921355 + -3.5 x = 3.435921355 + -3.5 Combine like terms: 3.435921355 + -3.5 = -0.064078645 x = -0.064078645 Simplifying x = -0.064078645

Subproblem 2

x + 3.5 = -3.435921355 Simplifying x + 3.5 = -3.435921355 Reorder the terms: 3.5 + x = -3.435921355 Solving 3.5 + x = -3.435921355 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-3.5' to each side of the equation. 3.5 + -3.5 + x = -3.435921355 + -3.5 Combine like terms: 3.5 + -3.5 = 0.0 0.0 + x = -3.435921355 + -3.5 x = -3.435921355 + -3.5 Combine like terms: -3.435921355 + -3.5 = -6.935921355 x = -6.935921355 Simplifying x = -6.935921355

Solution

The solution to the problem is based on the solutions from the subproblems. x = {-0.064078645, -6.935921355}

See similar equations:

| 225=(4x+3) | | 2c^2=1152 | | 6p+60=-5 | | 27p=p+13 | | 4x-2(x-7)=8 | | 5z+4(6-z)=-(z-2)+12 | | -5y-9=3y+15 | | 12x=187 | | X+-14=4 | | 22=2(x-9)+x | | 4a-8= | | 3x^2-8x=2x^2-16 | | 5y^2-4y+6=0 | | 6m=-6m+144 | | 3x+5[3x+6]=138 | | 7-5x+x=19 | | 1872=(16+x)*x | | 3(m+13)=4m+19 | | 4y^2-4y+5=0 | | 2z-3(z+1)=-(7z+8)+2 | | 8x-8+2y=0 | | y^2+10y+9=0 | | -9x-4.6+8.6-2x=0.4 | | 3x^2-12=16x | | 4(7e-9)+6=82 | | 4(4-t)-(3-2t)=6 | | 78=3(x-3)+x | | 3m+13=4m+19 | | 4z^2-9z=0 | | 3(x-3)=5(1.5)+x | | b^2-5b-24=0 | | 5z-4(z-8)=4z+2z |

Equations solver categories