3x^2-48x+126=0

Simple and best practice solution for 3x^2-48x+126=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^2-48x+126=0 equation:


Simplifying
3x2 + -48x + 126 = 0

Reorder the terms:
126 + -48x + 3x2 = 0

Solving
126 + -48x + 3x2 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '3'.
3(42 + -16x + x2) = 0

Ignore the factor 3.

Subproblem 1

Set the factor '(42 + -16x + x2)' equal to zero and attempt to solve: Simplifying 42 + -16x + x2 = 0 Solving 42 + -16x + x2 = 0 Begin completing the square. Move the constant term to the right: Add '-42' to each side of the equation. 42 + -16x + -42 + x2 = 0 + -42 Reorder the terms: 42 + -42 + -16x + x2 = 0 + -42 Combine like terms: 42 + -42 = 0 0 + -16x + x2 = 0 + -42 -16x + x2 = 0 + -42 Combine like terms: 0 + -42 = -42 -16x + x2 = -42 The x term is -16x. Take half its coefficient (-8). Square it (64) and add it to both sides. Add '64' to each side of the equation. -16x + 64 + x2 = -42 + 64 Reorder the terms: 64 + -16x + x2 = -42 + 64 Combine like terms: -42 + 64 = 22 64 + -16x + x2 = 22 Factor a perfect square on the left side: (x + -8)(x + -8) = 22 Calculate the square root of the right side: 4.69041576 Break this problem into two subproblems by setting (x + -8) equal to 4.69041576 and -4.69041576.

Subproblem 1

x + -8 = 4.69041576 Simplifying x + -8 = 4.69041576 Reorder the terms: -8 + x = 4.69041576 Solving -8 + x = 4.69041576 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '8' to each side of the equation. -8 + 8 + x = 4.69041576 + 8 Combine like terms: -8 + 8 = 0 0 + x = 4.69041576 + 8 x = 4.69041576 + 8 Combine like terms: 4.69041576 + 8 = 12.69041576 x = 12.69041576 Simplifying x = 12.69041576

Subproblem 2

x + -8 = -4.69041576 Simplifying x + -8 = -4.69041576 Reorder the terms: -8 + x = -4.69041576 Solving -8 + x = -4.69041576 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '8' to each side of the equation. -8 + 8 + x = -4.69041576 + 8 Combine like terms: -8 + 8 = 0 0 + x = -4.69041576 + 8 x = -4.69041576 + 8 Combine like terms: -4.69041576 + 8 = 3.30958424 x = 3.30958424 Simplifying x = 3.30958424

Solution

The solution to the problem is based on the solutions from the subproblems. x = {12.69041576, 3.30958424}

Solution

x = {12.69041576, 3.30958424}

See similar equations:

| 3a+2=9 | | 1/x=1/5x-x-1/5x | | 9w+17= | | 36=o+12 | | 13n-10=34 | | (3x+25)+2x=180 | | 3(14+-2)=36 | | -4n-2(n+1)=-6n | | x+3=1+x+5 | | 10n-13=34 | | 7+i/2-2i= | | 670=j+5 | | 6n+5-4n-2=14n-33 | | 18x+9y=72 | | 9+5r=-13-8r | | -13+3x-7x=x-4-8x | | 2c+11=5c+5 | | 1x+36=30 | | -7m(3)n(4)=(4m)(5)(6n) | | 15z-12=18z | | 4p-10= | | 15z-12=182 | | 14y=9+11y | | 3x^2-xy^2=12 | | 2x+4=-4x+4 | | 5+2(3a-6)=17 | | 586?3.7= | | 32x^2-x=54 | | 5m*1.6=10.5+2m | | x+36=-270 | | x-13.25=29.25 | | 3x*4x^7u^6*3u^9=0 |

Equations solver categories