6x+3=9x(x-2)

Simple and best practice solution for 6x+3=9x(x-2) 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 6x+3=9x(x-2) equation:


Simplifying
6x + 3 = 9x(x + -2)

Reorder the terms:
3 + 6x = 9x(x + -2)

Reorder the terms:
3 + 6x = 9x(-2 + x)
3 + 6x = (-2 * 9x + x * 9x)
3 + 6x = (-18x + 9x2)

Solving
3 + 6x = -18x + 9x2

Solving for variable 'x'.

Combine like terms: 6x + 18x = 24x
3 + 24x + -9x2 = -18x + 9x2 + 18x + -9x2

Reorder the terms:
3 + 24x + -9x2 = -18x + 18x + 9x2 + -9x2

Combine like terms: -18x + 18x = 0
3 + 24x + -9x2 = 0 + 9x2 + -9x2
3 + 24x + -9x2 = 9x2 + -9x2

Combine like terms: 9x2 + -9x2 = 0
3 + 24x + -9x2 = 0

Factor out the Greatest Common Factor (GCF), '3'.
3(1 + 8x + -3x2) = 0

Ignore the factor 3.

Subproblem 1

Set the factor '(1 + 8x + -3x2)' equal to zero and attempt to solve: Simplifying 1 + 8x + -3x2 = 0 Solving 1 + 8x + -3x2 = 0 Begin completing the square. Divide all terms by -3 the coefficient of the squared term: Divide each side by '-3'. -0.3333333333 + -2.666666667x + x2 = 0 Move the constant term to the right: Add '0.3333333333' to each side of the equation. -0.3333333333 + -2.666666667x + 0.3333333333 + x2 = 0 + 0.3333333333 Reorder the terms: -0.3333333333 + 0.3333333333 + -2.666666667x + x2 = 0 + 0.3333333333 Combine like terms: -0.3333333333 + 0.3333333333 = 0.0000000000 0.0000000000 + -2.666666667x + x2 = 0 + 0.3333333333 -2.666666667x + x2 = 0 + 0.3333333333 Combine like terms: 0 + 0.3333333333 = 0.3333333333 -2.666666667x + x2 = 0.3333333333 The x term is -2.666666667x. Take half its coefficient (-1.333333334). Square it (1.777777780) and add it to both sides. Add '1.777777780' to each side of the equation. -2.666666667x + 1.777777780 + x2 = 0.3333333333 + 1.777777780 Reorder the terms: 1.777777780 + -2.666666667x + x2 = 0.3333333333 + 1.777777780 Combine like terms: 0.3333333333 + 1.777777780 = 2.1111111133 1.777777780 + -2.666666667x + x2 = 2.1111111133 Factor a perfect square on the left side: (x + -1.333333334)(x + -1.333333334) = 2.1111111133 Calculate the square root of the right side: 1.452966315 Break this problem into two subproblems by setting (x + -1.333333334) equal to 1.452966315 and -1.452966315.

Subproblem 1

x + -1.333333334 = 1.452966315 Simplifying x + -1.333333334 = 1.452966315 Reorder the terms: -1.333333334 + x = 1.452966315 Solving -1.333333334 + x = 1.452966315 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.333333334' to each side of the equation. -1.333333334 + 1.333333334 + x = 1.452966315 + 1.333333334 Combine like terms: -1.333333334 + 1.333333334 = 0.000000000 0.000000000 + x = 1.452966315 + 1.333333334 x = 1.452966315 + 1.333333334 Combine like terms: 1.452966315 + 1.333333334 = 2.786299649 x = 2.786299649 Simplifying x = 2.786299649

Subproblem 2

x + -1.333333334 = -1.452966315 Simplifying x + -1.333333334 = -1.452966315 Reorder the terms: -1.333333334 + x = -1.452966315 Solving -1.333333334 + x = -1.452966315 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.333333334' to each side of the equation. -1.333333334 + 1.333333334 + x = -1.452966315 + 1.333333334 Combine like terms: -1.333333334 + 1.333333334 = 0.000000000 0.000000000 + x = -1.452966315 + 1.333333334 x = -1.452966315 + 1.333333334 Combine like terms: -1.452966315 + 1.333333334 = -0.119632981 x = -0.119632981 Simplifying x = -0.119632981

Solution

The solution to the problem is based on the solutions from the subproblems. x = {2.786299649, -0.119632981}

Solution

x = {2.786299649, -0.119632981}

See similar equations:

| 26+3x=38+4y | | -39-4x=11-9x | | 2x+5x=8-x | | 92-3x=3x+14 | | 5x+35=14x-55 | | 119-6x=10x+23 | | 5x+58=8x-8 | | 8+12x=63+x | | 1.5+x=5.5x+x | | 1.5x=5.5x+x | | 5ab-10a=7b | | -49-3x=3x+20 | | 3b+4(b+3)+2=0 | | 3x+35=10x-28 | | 102-3x=11-9x | | 3n+7=8n-13 | | (x-5)(x-5)=7 | | 5.5x=1.5+x | | 4x(2x+5)=8(x+1)(x-1) | | (5x-2)(5x-2)=10 | | 4x^2+10=16 | | 3(x+2)=2x+6 | | 5w=12w-63 | | (2x-6)(8x-4)=0 | | 2x^2+4x+9=0 | | 20-4x=6x | | x+15+3x-17=180 | | 6x+19=14x-69 | | -2(4-x)=10 | | 3m-10=-12+m | | 5(6+x)=45 | | 7x+11=-10 |

Equations solver categories