-27x^2+342x+72=0

Simple and best practice solution for -27x^2+342x+72=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 -27x^2+342x+72=0 equation:


Simplifying
-27x2 + 342x + 72 = 0

Reorder the terms:
72 + 342x + -27x2 = 0

Solving
72 + 342x + -27x2 = 0

Solving for variable 'x'.

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:

| 5n-2n=27 | | 23+18=-21+14y | | 12=0.005*x | | 7-y=-7+y | | -3(1/3)= | | 4b-30=b-3 | | -3(3)+5= | | 1225+280+80= | | X-(1/4)X-(1/3)X-10=0 | | 5+(-3+3)= | | 2/5x-3=-4/5x-2 | | b-8=-6 | | 3=-6U+3 | | 4(8x-1)=-3(x-1) | | 200+1.75x=280.50 | | x^3-2x^2+2=3x^2+5x-23 | | x=4sin(x) | | -2x+5x-2x+3x+1+-2x-3x+4x+3x+5= | | .6x=13.02 | | 3(5a-11)=27 | | 36x^5+24x^3=0 | | 2/3xN=3/8 | | (2b^6)^2/(4b^2)^3 | | (3x-1)(x+2)=-4 | | 2x-7+3x=5x+2-9 | | -4-3(6x+9)=41 | | 8(3+2z)=56 | | 2x9/4 | | abs(3x-8)=5x | | -2/3(-1/5) | | 3x^2-4x+2=x^2+x-6 | | 7n-(4n+16)=7-(3n-2) |

Equations solver categories