x(3-4x)-2(x^2+5x)+6=0

Simple and best practice solution for x(3-4x)-2(x^2+5x)+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 x(3-4x)-2(x^2+5x)+6=0 equation:


Simplifying
x(3 + -4x) + -2(x2 + 5x) + 6 = 0
(3 * x + -4x * x) + -2(x2 + 5x) + 6 = 0
(3x + -4x2) + -2(x2 + 5x) + 6 = 0

Reorder the terms:
3x + -4x2 + -2(5x + x2) + 6 = 0
3x + -4x2 + (5x * -2 + x2 * -2) + 6 = 0
3x + -4x2 + (-10x + -2x2) + 6 = 0

Reorder the terms:
6 + 3x + -10x + -4x2 + -2x2 = 0

Combine like terms: 3x + -10x = -7x
6 + -7x + -4x2 + -2x2 = 0

Combine like terms: -4x2 + -2x2 = -6x2
6 + -7x + -6x2 = 0

Solving
6 + -7x + -6x2 = 0

Solving for variable 'x'.

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

Divide each side by '-6'.
-1 + 1.166666667x + x2 = 0

Move the constant term to the right:

Add '1' to each side of the equation.
-1 + 1.166666667x + 1 + x2 = 0 + 1

Reorder the terms:
-1 + 1 + 1.166666667x + x2 = 0 + 1

Combine like terms: -1 + 1 = 0
0 + 1.166666667x + x2 = 0 + 1
1.166666667x + x2 = 0 + 1

Combine like terms: 0 + 1 = 1
1.166666667x + x2 = 1

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 = 1 + 0.3402777780

Reorder the terms:
0.3402777780 + 1.166666667x + x2 = 1 + 0.3402777780

Combine like terms: 1 + 0.3402777780 = 1.340277778
0.3402777780 + 1.166666667x + x2 = 1.340277778

Factor a perfect square on the left side:
(x + 0.5833333335)(x + 0.5833333335) = 1.340277778

Calculate the square root of the right side: 1.157703666

Break this problem into two subproblems by setting 
(x + 0.5833333335) equal to 1.157703666 and -1.157703666.

Subproblem 1

x + 0.5833333335 = 1.157703666 Simplifying x + 0.5833333335 = 1.157703666 Reorder the terms: 0.5833333335 + x = 1.157703666 Solving 0.5833333335 + x = 1.157703666 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 = 1.157703666 + -0.5833333335 Combine like terms: 0.5833333335 + -0.5833333335 = 0.0000000000 0.0000000000 + x = 1.157703666 + -0.5833333335 x = 1.157703666 + -0.5833333335 Combine like terms: 1.157703666 + -0.5833333335 = 0.5743703325 x = 0.5743703325 Simplifying x = 0.5743703325

Subproblem 2

x + 0.5833333335 = -1.157703666 Simplifying x + 0.5833333335 = -1.157703666 Reorder the terms: 0.5833333335 + x = -1.157703666 Solving 0.5833333335 + x = -1.157703666 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 = -1.157703666 + -0.5833333335 Combine like terms: 0.5833333335 + -0.5833333335 = 0.0000000000 0.0000000000 + x = -1.157703666 + -0.5833333335 x = -1.157703666 + -0.5833333335 Combine like terms: -1.157703666 + -0.5833333335 = -1.7410369995 x = -1.7410369995 Simplifying x = -1.7410369995

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.5743703325, -1.7410369995}

See similar equations:

| 4t^2(5t-6)=0 | | y=9x+21 | | 5x-10=6x-5 | | 60t^2-48t=0 | | 8(x-8.1)=4.8 | | p/4=p+7/6 | | 9x+7.32=6x+12 | | 10v=2v+72 | | 5.1x=-50.49 | | 4w=28-3w | | -5.1x=-50.49 | | x-4/9=5/18 | | 10u=14+3u | | 6+5m-6m=1 | | 1.9x-13=1.4x+8 | | 3b-2+4-b=6 | | b-6/5=b+7/4 | | 4.3x+10-9.3x=5 | | -9r+7=-9-5r | | 80t^3+30t^2=0 | | 3x^2+2x-3xy-5x-x^2+5xy+2y^2=0 | | 12a^4b^6+4ab^4-24ab^6=0 | | (3x+6y+7)(3x+6y-7)= | | 6w=5w+6 | | x^2+5y^2-2x+20y+15=0 | | m/8=6/5 | | -2+3f-2f=-10+9f | | 0.8x+0.7=-1.7 | | 4x+3.0=8.7 | | y=x+0.25 | | ar-as+at= | | 3u+5=23 |

Equations solver categories