6x^2+7x=384

Simple and best practice solution for 6x^2+7x=384 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^2+7x=384 equation:


Simplifying
6x2 + 7x = 384

Reorder the terms:
7x + 6x2 = 384

Solving
7x + 6x2 = 384

Solving for variable 'x'.

Reorder the terms:
-384 + 7x + 6x2 = 384 + -384

Combine like terms: 384 + -384 = 0
-384 + 7x + 6x2 = 0

Begin completing the square.  Divide all terms by
6 the coefficient of the squared term: 

Divide each side by '6'.
-64 + 1.166666667x + x2 = 0

Move the constant term to the right:

Add '64' to each side of the equation.
-64 + 1.166666667x + 64 + x2 = 0 + 64

Reorder the terms:
-64 + 64 + 1.166666667x + x2 = 0 + 64

Combine like terms: -64 + 64 = 0
0 + 1.166666667x + x2 = 0 + 64
1.166666667x + x2 = 0 + 64

Combine like terms: 0 + 64 = 64
1.166666667x + x2 = 64

The x term is 1.166666667x.  Take half its coefficient (0.5833333335).
Square it (0.3402777780) and add it to both sides.

Add '0.3402777780' to each side of the equation.
1.166666667x + 0.3402777780 + x2 = 64 + 0.3402777780

Reorder the terms:
0.3402777780 + 1.166666667x + x2 = 64 + 0.3402777780

Combine like terms: 64 + 0.3402777780 = 64.340277778
0.3402777780 + 1.166666667x + x2 = 64.340277778

Factor a perfect square on the left side:
(x + 0.5833333335)(x + 0.5833333335) = 64.340277778

Calculate the square root of the right side: 8.021239167

Break this problem into two subproblems by setting 
(x + 0.5833333335) equal to 8.021239167 and -8.021239167.

Subproblem 1

x + 0.5833333335 = 8.021239167 Simplifying x + 0.5833333335 = 8.021239167 Reorder the terms: 0.5833333335 + x = 8.021239167 Solving 0.5833333335 + x = 8.021239167 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.5833333335' to each side of the equation. 0.5833333335 + -0.5833333335 + x = 8.021239167 + -0.5833333335 Combine like terms: 0.5833333335 + -0.5833333335 = 0.0000000000 0.0000000000 + x = 8.021239167 + -0.5833333335 x = 8.021239167 + -0.5833333335 Combine like terms: 8.021239167 + -0.5833333335 = 7.4379058335 x = 7.4379058335 Simplifying x = 7.4379058335

Subproblem 2

x + 0.5833333335 = -8.021239167 Simplifying x + 0.5833333335 = -8.021239167 Reorder the terms: 0.5833333335 + x = -8.021239167 Solving 0.5833333335 + x = -8.021239167 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.5833333335' to each side of the equation. 0.5833333335 + -0.5833333335 + x = -8.021239167 + -0.5833333335 Combine like terms: 0.5833333335 + -0.5833333335 = 0.0000000000 0.0000000000 + x = -8.021239167 + -0.5833333335 x = -8.021239167 + -0.5833333335 Combine like terms: -8.021239167 + -0.5833333335 = -8.6045725005 x = -8.6045725005 Simplifying x = -8.6045725005

Solution

The solution to the problem is based on the solutions from the subproblems. x = {7.4379058335, -8.6045725005}

See similar equations:

| 8x=5x+21 | | 3x^3+x^2-4x=0 | | 12x=8x+36 | | 3.6=6-.4y | | x=852-53 | | X=13+7 | | 4(M-4)=2(M+2) | | 3(p+6)=5p+4 | | 2a=3a+4c | | 4x-(3x+8)=0 | | 7y+10p+18+10p+17y= | | -x^2+8x-16=0 | | H(10)=2x+8 | | -2+-1x= | | H(X)=2X+8H(10) | | f+f+f+d+f+g+h+f+d+g+f+5=100 | | H(X)=2X+8 | | 9+9=g | | 2f+5=20 | | 798473843678463874+6652256754675347654635=h | | 9xn=27 | | 5455+f=7888 | | y=3(2x+3) | | 2y=12x+18 | | 36-6x=3x+20 | | 2w+50=3w-87 | | 5-10x=23-24x | | -92-10x=9x+22 | | 4x+11=-93-9x | | 25x^2+90x+81=0 | | .6x-10=.66x | | -3-5x=3x+16 |

Equations solver categories