3x^2=5-6x

Simple and best practice solution for 3x^2=5-6x 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=5-6x equation:


Simplifying
3x2 = 5 + -6x

Solving
3x2 = 5 + -6x

Solving for variable 'x'.

Reorder the terms:
-5 + 6x + 3x2 = 5 + -6x + -5 + 6x

Reorder the terms:
-5 + 6x + 3x2 = 5 + -5 + -6x + 6x

Combine like terms: 5 + -5 = 0
-5 + 6x + 3x2 = 0 + -6x + 6x
-5 + 6x + 3x2 = -6x + 6x

Combine like terms: -6x + 6x = 0
-5 + 6x + 3x2 = 0

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

Divide each side by '3'.
-1.666666667 + 2x + x2 = 0

Move the constant term to the right:

Add '1.666666667' to each side of the equation.
-1.666666667 + 2x + 1.666666667 + x2 = 0 + 1.666666667

Reorder the terms:
-1.666666667 + 1.666666667 + 2x + x2 = 0 + 1.666666667

Combine like terms: -1.666666667 + 1.666666667 = 0.000000000
0.000000000 + 2x + x2 = 0 + 1.666666667
2x + x2 = 0 + 1.666666667

Combine like terms: 0 + 1.666666667 = 1.666666667
2x + x2 = 1.666666667

The x term is 2x.  Take half its coefficient (1).
Square it (1) and add it to both sides.

Add '1' to each side of the equation.
2x + 1 + x2 = 1.666666667 + 1

Reorder the terms:
1 + 2x + x2 = 1.666666667 + 1

Combine like terms: 1.666666667 + 1 = 2.666666667
1 + 2x + x2 = 2.666666667

Factor a perfect square on the left side:
(x + 1)(x + 1) = 2.666666667

Calculate the square root of the right side: 1.632993162

Break this problem into two subproblems by setting 
(x + 1) equal to 1.632993162 and -1.632993162.

Subproblem 1

x + 1 = 1.632993162 Simplifying x + 1 = 1.632993162 Reorder the terms: 1 + x = 1.632993162 Solving 1 + x = 1.632993162 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + x = 1.632993162 + -1 Combine like terms: 1 + -1 = 0 0 + x = 1.632993162 + -1 x = 1.632993162 + -1 Combine like terms: 1.632993162 + -1 = 0.632993162 x = 0.632993162 Simplifying x = 0.632993162

Subproblem 2

x + 1 = -1.632993162 Simplifying x + 1 = -1.632993162 Reorder the terms: 1 + x = -1.632993162 Solving 1 + x = -1.632993162 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + x = -1.632993162 + -1 Combine like terms: 1 + -1 = 0 0 + x = -1.632993162 + -1 x = -1.632993162 + -1 Combine like terms: -1.632993162 + -1 = -2.632993162 x = -2.632993162 Simplifying x = -2.632993162

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.632993162, -2.632993162}

See similar equations:

| b^2-13b+12=0 | | 10x-5=-2(-3-6x) | | 5=8.5k | | m^2-15m+14=0 | | x-3y=-8x | | (1.5x+17)= | | c^2-16c+63=0 | | -4(6x-8)+5=-24x+37 | | 8lx-3l=-24 | | -3x+6y+5=7 | | 44=17+k | | (3x^5+8x^3)=(7x^2+6x^3) | | x-7=5x-27 | | 24+3x=3x+3(18) | | 18+k=19 | | 12.7-7v=1.5 | | 7+0.4(6-y)=1.8y-9(y-0.9) | | -2(t+1)+4t=7t-7 | | 7(x-2)=29 | | 27x^2-1+5x^2+17+9x^2=180 | | x-3.1=-6.4 | | 30n^3+5n^2-60n= | | x=zv-zk^2 | | .05x+.04(x-1900)=167 | | (3z+1)x(z-2)= | | .10j+.15k=3.55 | | 0.02(y-9)+0.16y=0.06y-0.6 | | 6(x-1)/4=3(x+7)/10 | | 0.7x+0.9=0.9x-0.7 | | 3(x-2)+2(x+4)=9 | | g(x)=-0.04x^2+2.1x+6.1 | | n-(-3/14)=-3/14 |

Equations solver categories