3x^2+9x+3=

Simple and best practice solution for 3x^2+9x+3= 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 3x^2+9x+3= equation:


Simplifying
3x2 + 9x + 3 = 0

Reorder the terms:
3 + 9x + 3x2 = 0

Solving
3 + 9x + 3x2 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '3'.
3(1 + 3x + x2) = 0

Ignore the factor 3.

Subproblem 1

Set the factor '(1 + 3x + x2)' equal to zero and attempt to solve: Simplifying 1 + 3x + x2 = 0 Solving 1 + 3x + x2 = 0 Begin completing the square. Move the constant term to the right: Add '-1' to each side of the equation. 1 + 3x + -1 + x2 = 0 + -1 Reorder the terms: 1 + -1 + 3x + x2 = 0 + -1 Combine like terms: 1 + -1 = 0 0 + 3x + x2 = 0 + -1 3x + x2 = 0 + -1 Combine like terms: 0 + -1 = -1 3x + x2 = -1 The x term is 3x. Take half its coefficient (1.5). Square it (2.25) and add it to both sides. Add '2.25' to each side of the equation. 3x + 2.25 + x2 = -1 + 2.25 Reorder the terms: 2.25 + 3x + x2 = -1 + 2.25 Combine like terms: -1 + 2.25 = 1.25 2.25 + 3x + x2 = 1.25 Factor a perfect square on the left side: (x + 1.5)(x + 1.5) = 1.25 Calculate the square root of the right side: 1.118033989 Break this problem into two subproblems by setting (x + 1.5) equal to 1.118033989 and -1.118033989.

Subproblem 1

x + 1.5 = 1.118033989 Simplifying x + 1.5 = 1.118033989 Reorder the terms: 1.5 + x = 1.118033989 Solving 1.5 + x = 1.118033989 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1.5' to each side of the equation. 1.5 + -1.5 + x = 1.118033989 + -1.5 Combine like terms: 1.5 + -1.5 = 0.0 0.0 + x = 1.118033989 + -1.5 x = 1.118033989 + -1.5 Combine like terms: 1.118033989 + -1.5 = -0.381966011 x = -0.381966011 Simplifying x = -0.381966011

Subproblem 2

x + 1.5 = -1.118033989 Simplifying x + 1.5 = -1.118033989 Reorder the terms: 1.5 + x = -1.118033989 Solving 1.5 + x = -1.118033989 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1.5' to each side of the equation. 1.5 + -1.5 + x = -1.118033989 + -1.5 Combine like terms: 1.5 + -1.5 = 0.0 0.0 + x = -1.118033989 + -1.5 x = -1.118033989 + -1.5 Combine like terms: -1.118033989 + -1.5 = -2.618033989 x = -2.618033989 Simplifying x = -2.618033989

Solution

The solution to the problem is based on the solutions from the subproblems. x = {-0.381966011, -2.618033989}

Solution

x = {-0.381966011, -2.618033989}

See similar equations:

| -2.06x^2+77.86x+741=0 | | 3x^2+15-90=0 | | 10(6m+4)= | | -2.06x^2+77.86x+741=1405040 | | y=2/3+1 | | abcdefghijk+lmnop=21 | | y=2/0+1 | | y=2/1+1 | | x^2-10x+47=0 | | 8x-3+2y-8=180 | | 2x+150000=550000000 | | 4x-9=3+2x | | y=2,1+1 | | 5x+2x-4=3 | | y=2,0+1 | | -6.7(2t+5)-2.7(4t-6)= | | a^4+3a^3-17a^2+2a-7a=3 | | 0.5=12x^2-2x+2 | | (1-7n).5= | | 200-y+2y=140 | | 169x^2-121y^2= | | 1+x-0.8x=1 | | y=2.1+1 | | y=2.0+1 | | 280=-7(8+6b) | | 5c-3d-12c+1d= | | 3x+10=16+6x | | -15-2x=-7 | | b^2=75 | | 2x+17=5-4 | | 3p+10p-8=0 | | 7v^2+35v-42=x |

Equations solver categories