-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 + -1x2) = 0

Ignore the factor 3.

Subproblem 1

Set the factor '(1 + 3x + -1x2)' equal to zero and attempt to solve: Simplifying 1 + 3x + -1x2 = 0 Solving 1 + 3x + -1x2 = 0 Begin completing the square. Divide all terms by -1 the coefficient of the squared term: Divide each side by '-1'. -1 + -3x + x2 = 0 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 = 3.302775638 x = 3.302775638 Simplifying x = 3.302775638

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 = -0.302775638 x = -0.302775638 Simplifying x = -0.302775638

Solution

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

Solution

x = {3.302775638, -0.302775638}

See similar equations:

| 4(2.5x-2)=2(6x-5)+5 | | 4(2/5x-2)=2(6x-5)+2 | | x=2500-15(6.25-8) | | (7x-3)^1/2=5 | | 0=2500-15(x-8) | | 4(5+x)=5(4x-1)-71 | | x=2500-15(400-8) | | -5x^2+8x+3=0 | | 1=2500-15(x-8) | | -1+0=9 | | 3w-5=25 | | y*21=399 | | 2x^1/3-2=0 | | 8x-4=110 | | 400=2500-15(x-8) | | (3p+1)(3p-1)(p+2)= | | 2x1/3-2=0 | | f=5/4(n-47) | | jx+py=t | | 2x^2=12-x^2 | | 0=-3x^2+9x+3 | | (y-.7)-(1.4y-3)= | | 0.75x=11 | | 7w-3w=(3w+11) | | 6n-2=52 | | 15-5x=-7x+9 | | f(x)=-3x^2+9x+3 | | K^2+2k+6=6 | | x^1/2-5=0 | | 15x+9=12x+12 | | -1/3+5/8 | | x-3/17=-11 |

Equations solver categories