4x^2-18x+6=0

Simple and best practice solution for 4x^2-18x+6=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 4x^2-18x+6=0 equation:


Simplifying
4x2 + -18x + 6 = 0

Reorder the terms:
6 + -18x + 4x2 = 0

Solving
6 + -18x + 4x2 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '2'.
2(3 + -9x + 2x2) = 0

Ignore the factor 2.

Subproblem 1

Set the factor '(3 + -9x + 2x2)' equal to zero and attempt to solve: Simplifying 3 + -9x + 2x2 = 0 Solving 3 + -9x + 2x2 = 0 Begin completing the square. Divide all terms by 2 the coefficient of the squared term: Divide each side by '2'. 1.5 + -4.5x + x2 = 0 Move the constant term to the right: Add '-1.5' to each side of the equation. 1.5 + -4.5x + -1.5 + x2 = 0 + -1.5 Reorder the terms: 1.5 + -1.5 + -4.5x + x2 = 0 + -1.5 Combine like terms: 1.5 + -1.5 = 0.0 0.0 + -4.5x + x2 = 0 + -1.5 -4.5x + x2 = 0 + -1.5 Combine like terms: 0 + -1.5 = -1.5 -4.5x + x2 = -1.5 The x term is -4.5x. Take half its coefficient (-2.25). Square it (5.0625) and add it to both sides. Add '5.0625' to each side of the equation. -4.5x + 5.0625 + x2 = -1.5 + 5.0625 Reorder the terms: 5.0625 + -4.5x + x2 = -1.5 + 5.0625 Combine like terms: -1.5 + 5.0625 = 3.5625 5.0625 + -4.5x + x2 = 3.5625 Factor a perfect square on the left side: (x + -2.25)(x + -2.25) = 3.5625 Calculate the square root of the right side: 1.887458609 Break this problem into two subproblems by setting (x + -2.25) equal to 1.887458609 and -1.887458609.

Subproblem 1

x + -2.25 = 1.887458609 Simplifying x + -2.25 = 1.887458609 Reorder the terms: -2.25 + x = 1.887458609 Solving -2.25 + x = 1.887458609 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2.25' to each side of the equation. -2.25 + 2.25 + x = 1.887458609 + 2.25 Combine like terms: -2.25 + 2.25 = 0.00 0.00 + x = 1.887458609 + 2.25 x = 1.887458609 + 2.25 Combine like terms: 1.887458609 + 2.25 = 4.137458609 x = 4.137458609 Simplifying x = 4.137458609

Subproblem 2

x + -2.25 = -1.887458609 Simplifying x + -2.25 = -1.887458609 Reorder the terms: -2.25 + x = -1.887458609 Solving -2.25 + x = -1.887458609 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2.25' to each side of the equation. -2.25 + 2.25 + x = -1.887458609 + 2.25 Combine like terms: -2.25 + 2.25 = 0.00 0.00 + x = -1.887458609 + 2.25 x = -1.887458609 + 2.25 Combine like terms: -1.887458609 + 2.25 = 0.362541391 x = 0.362541391 Simplifying x = 0.362541391

Solution

The solution to the problem is based on the solutions from the subproblems. x = {4.137458609, 0.362541391}

Solution

x = {4.137458609, 0.362541391}

See similar equations:

| (x-7)*(x+3)= | | y^2+x-16=0 | | 3x+2x-9=1 | | 37-(2x+5)=2(x+6)+x | | -19x(x+11)= | | 8x-17=2(5x-1) | | b/11-3b/11=14/11 | | x^4-4x^2=-1 | | x=6.2+-0.6y | | 30x(x-26)= | | 2x+4x-12=5x-1 | | 16x^2+62=64z | | 19x(x-13)= | | -13.68+(-1.474)= | | 2x-1=x^2-4x+4 | | -1x+y=2 | | (2x+3)*(-x-2)= | | 14.3+7.25= | | 11x=9x+7 | | 17x-2x=-3 | | (7x+6)2= | | 146-4x=23x+20 | | x^2-3y^2=0 | | x=5sqrt(4x+8)-4 | | D=2c-d+2a | | 5.65+(-12.5)= | | 6(10y)= | | 22x-6=184+3x | | -46=5x-0.33x | | 3(x+2)=6x-12 | | 3x+12-7x=16-14x+10x-4 | | x-8=x-44 |

Equations solver categories