3x(9x)+3x(6)=18(20x)+18(4)

Simple and best practice solution for 3x(9x)+3x(6)=18(20x)+18(4) 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(9x)+3x(6)=18(20x)+18(4) equation:


Simplifying
3x(9x) + 3x(6) = 18(20x) + 18(4)

Remove parenthesis around (9x)
3x * 9x + 3x(6) = 18(20x) + 18(4)

Reorder the terms for easier multiplication:
3 * 9x * x + 3x(6) = 18(20x) + 18(4)

Multiply 3 * 9
27x * x + 3x(6) = 18(20x) + 18(4)

Multiply x * x
27x2 + 3x(6) = 18(20x) + 18(4)

Reorder the terms for easier multiplication:
27x2 + 3 * 6x = 18(20x) + 18(4)

Multiply 3 * 6
27x2 + 18x = 18(20x) + 18(4)

Reorder the terms:
18x + 27x2 = 18(20x) + 18(4)

Remove parenthesis around (20x)
18x + 27x2 = 18 * 20x + 18(4)

Multiply 18 * 20
18x + 27x2 = 360x + 18(4)

Multiply 18 * 4
18x + 27x2 = 360x + 72

Reorder the terms:
18x + 27x2 = 72 + 360x

Solving
18x + 27x2 = 72 + 360x

Solving for variable 'x'.

Reorder the terms:
-72 + 18x + -360x + 27x2 = 72 + 360x + -72 + -360x

Combine like terms: 18x + -360x = -342x
-72 + -342x + 27x2 = 72 + 360x + -72 + -360x

Reorder the terms:
-72 + -342x + 27x2 = 72 + -72 + 360x + -360x

Combine like terms: 72 + -72 = 0
-72 + -342x + 27x2 = 0 + 360x + -360x
-72 + -342x + 27x2 = 360x + -360x

Combine like terms: 360x + -360x = 0
-72 + -342x + 27x2 = 0

Factor out the Greatest Common Factor (GCF), '9'.
9(-8 + -38x + 3x2) = 0

Ignore the factor 9.

Subproblem 1

Set the factor '(-8 + -38x + 3x2)' equal to zero and attempt to solve: Simplifying -8 + -38x + 3x2 = 0 Solving -8 + -38x + 3x2 = 0 Begin completing the square. Divide all terms by 3 the coefficient of the squared term: Divide each side by '3'. -2.666666667 + -12.66666667x + x2 = 0 Move the constant term to the right: Add '2.666666667' to each side of the equation. -2.666666667 + -12.66666667x + 2.666666667 + x2 = 0 + 2.666666667 Reorder the terms: -2.666666667 + 2.666666667 + -12.66666667x + x2 = 0 + 2.666666667 Combine like terms: -2.666666667 + 2.666666667 = 0.000000000 0.000000000 + -12.66666667x + x2 = 0 + 2.666666667 -12.66666667x + x2 = 0 + 2.666666667 Combine like terms: 0 + 2.666666667 = 2.666666667 -12.66666667x + x2 = 2.666666667 The x term is -12.66666667x. Take half its coefficient (-6.333333335). Square it (40.11111113) and add it to both sides. Add '40.11111113' to each side of the equation. -12.66666667x + 40.11111113 + x2 = 2.666666667 + 40.11111113 Reorder the terms: 40.11111113 + -12.66666667x + x2 = 2.666666667 + 40.11111113 Combine like terms: 2.666666667 + 40.11111113 = 42.777777797 40.11111113 + -12.66666667x + x2 = 42.777777797 Factor a perfect square on the left side: (x + -6.333333335)(x + -6.333333335) = 42.777777797 Calculate the square root of the right side: 6.540472292 Break this problem into two subproblems by setting (x + -6.333333335) equal to 6.540472292 and -6.540472292.

Subproblem 1

x + -6.333333335 = 6.540472292 Simplifying x + -6.333333335 = 6.540472292 Reorder the terms: -6.333333335 + x = 6.540472292 Solving -6.333333335 + x = 6.540472292 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '6.333333335' to each side of the equation. -6.333333335 + 6.333333335 + x = 6.540472292 + 6.333333335 Combine like terms: -6.333333335 + 6.333333335 = 0.000000000 0.000000000 + x = 6.540472292 + 6.333333335 x = 6.540472292 + 6.333333335 Combine like terms: 6.540472292 + 6.333333335 = 12.873805627 x = 12.873805627 Simplifying x = 12.873805627

Subproblem 2

x + -6.333333335 = -6.540472292 Simplifying x + -6.333333335 = -6.540472292 Reorder the terms: -6.333333335 + x = -6.540472292 Solving -6.333333335 + x = -6.540472292 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '6.333333335' to each side of the equation. -6.333333335 + 6.333333335 + x = -6.540472292 + 6.333333335 Combine like terms: -6.333333335 + 6.333333335 = 0.000000000 0.000000000 + x = -6.540472292 + 6.333333335 x = -6.540472292 + 6.333333335 Combine like terms: -6.540472292 + 6.333333335 = -0.207138957 x = -0.207138957 Simplifying x = -0.207138957

Solution

The solution to the problem is based on the solutions from the subproblems. x = {12.873805627, -0.207138957}

Solution

x = {12.873805627, -0.207138957}

See similar equations:

| 4(37x-60)=-98x+86 | | 20x-75=-41x+38 | | 250+350=x | | 11=5x+4-6x | | a=(4x+8)(2x+3) | | 11x-4=12(x+1) | | 2(3x-8)=-7x+4 | | 6x-4=-8x+2 | | 6(x+8)+5=53 | | 16=6x+10x | | -2+12x=-34 | | 3(4x-6)=-8x+8 | | 5x+8(8)=0 | | 35-5y=35 | | 10(x^2)+10(4x)+10(4)=40x+80 | | 8(x-1)=7x+3 | | K-16=-99 | | (-9p)(-10+3p)+7p(-9+3p)= | | 9x-5=-5x+10 | | -(-3m+10)-(2m-14)=2(m+3) | | 23x-7-14x+2=19x-8-10x+13 | | 5x+2-(4x-1-9x)=6x-1 | | -2m+14=100 | | 4(2n+5p)-4(3n-6p)=4n-4p | | 165=3(6-7a) | | (2x-3)+(4x-3)= | | 5x+3x+8x=180 | | 7.1x-5+x-1.5= | | 1+6n+6=1 | | -8k^2-2k+7=0 | | -15y=-7x-15 | | -15y=-7x-25 |

Equations solver categories