(3x^2)+9x-3=0

Simple and best practice solution for (3x^2)+9x-3=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 (3x^2)+9x-3=0 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 = 3.25 2.25 + 3x + x2 = 3.25 Factor a perfect square on the left side: (x + 1.5)(x + 1.5) = 3.25 Calculate the square root of the right side: 1.802775638 Break this problem into two subproblems by setting (x + 1.5) equal to 1.802775638 and -1.802775638.

Subproblem 1

x + 1.5 = 1.802775638 Simplifying x + 1.5 = 1.802775638 Reorder the terms: 1.5 + x = 1.802775638 Solving 1.5 + x = 1.802775638 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 = 1.802775638 + -1.5 Combine like terms: 1.5 + -1.5 = 0.0 0.0 + x = 1.802775638 + -1.5 x = 1.802775638 + -1.5 Combine like terms: 1.802775638 + -1.5 = 0.302775638 x = 0.302775638 Simplifying x = 0.302775638

Subproblem 2

x + 1.5 = -1.802775638 Simplifying x + 1.5 = -1.802775638 Reorder the terms: 1.5 + x = -1.802775638 Solving 1.5 + x = -1.802775638 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 = -1.802775638 + -1.5 Combine like terms: 1.5 + -1.5 = 0.0 0.0 + x = -1.802775638 + -1.5 x = -1.802775638 + -1.5 Combine like terms: -1.802775638 + -1.5 = -3.302775638 x = -3.302775638 Simplifying x = -3.302775638

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.302775638, -3.302775638}

Solution

x = {0.302775638, -3.302775638}

See similar equations:

| 5(-2)-8k=-34 | | 30x+33y=24000 | | 4(x-2)=2(2x-5) | | -2x=43 | | (3x^2)=3-9x | | 12k^2-75= | | 6(3x+10)=-48 | | .04x+.03(2,000-x)=75 | | (x^2)-4.6x+2.8=0 | | -13n-53=-2(4n-14) | | 2(7)-3=3(7)+1 | | 4-2z=10 | | 2(2x-3)=3x+1 | | 7a+12-4a=9a | | 2n+24=n-6 | | (x^2)+x-30=12 | | 0.5(x-8)=.07x | | -0.875+2x-x^2=0 | | (2x+7)-5i=-5+(4y+3)i | | 8x-11=3x+3 | | 5-3e=14 | | X^3+6*x^2+8x+48=0 | | 4(20x+50)=1080 | | -3(x+5)=-21 | | 2s^2-17s-9= | | 4g+5(8)-g+16= | | 6t-5=-17 | | 3(9)-3x=15 | | .8m+2.6=.2m+9.8 | | 39+x=2(13+x) | | 5=7(x+8) | | -16=8+6(b-3) |

Equations solver categories