3x^2=3-5x

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


Simplifying
3x2 = 3 + -5x

Solving
3x2 = 3 + -5x

Solving for variable 'x'.

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

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

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

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

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

Divide each side by '3'.
-1 + 1.666666667x + x2 = 0

Move the constant term to the right:

Add '1' to each side of the equation.
-1 + 1.666666667x + 1 + x2 = 0 + 1

Reorder the terms:
-1 + 1 + 1.666666667x + x2 = 0 + 1

Combine like terms: -1 + 1 = 0
0 + 1.666666667x + x2 = 0 + 1
1.666666667x + x2 = 0 + 1

Combine like terms: 0 + 1 = 1
1.666666667x + x2 = 1

The x term is 1.666666667x.  Take half its coefficient (0.8333333335).
Square it (0.6944444447) and add it to both sides.

Add '0.6944444447' to each side of the equation.
1.666666667x + 0.6944444447 + x2 = 1 + 0.6944444447

Reorder the terms:
0.6944444447 + 1.666666667x + x2 = 1 + 0.6944444447

Combine like terms: 1 + 0.6944444447 = 1.6944444447
0.6944444447 + 1.666666667x + x2 = 1.6944444447

Factor a perfect square on the left side:
(x + 0.8333333335)(x + 0.8333333335) = 1.6944444447

Calculate the square root of the right side: 1.301708279

Break this problem into two subproblems by setting 
(x + 0.8333333335) equal to 1.301708279 and -1.301708279.

Subproblem 1

x + 0.8333333335 = 1.301708279 Simplifying x + 0.8333333335 = 1.301708279 Reorder the terms: 0.8333333335 + x = 1.301708279 Solving 0.8333333335 + x = 1.301708279 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.8333333335' to each side of the equation. 0.8333333335 + -0.8333333335 + x = 1.301708279 + -0.8333333335 Combine like terms: 0.8333333335 + -0.8333333335 = 0.0000000000 0.0000000000 + x = 1.301708279 + -0.8333333335 x = 1.301708279 + -0.8333333335 Combine like terms: 1.301708279 + -0.8333333335 = 0.4683749455 x = 0.4683749455 Simplifying x = 0.4683749455

Subproblem 2

x + 0.8333333335 = -1.301708279 Simplifying x + 0.8333333335 = -1.301708279 Reorder the terms: 0.8333333335 + x = -1.301708279 Solving 0.8333333335 + x = -1.301708279 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.8333333335' to each side of the equation. 0.8333333335 + -0.8333333335 + x = -1.301708279 + -0.8333333335 Combine like terms: 0.8333333335 + -0.8333333335 = 0.0000000000 0.0000000000 + x = -1.301708279 + -0.8333333335 x = -1.301708279 + -0.8333333335 Combine like terms: -1.301708279 + -0.8333333335 = -2.1350416125 x = -2.1350416125 Simplifying x = -2.1350416125

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.4683749455, -2.1350416125}

See similar equations:

| 2/1*(-5/-7)*(-3/8) | | -4=2/8d | | x+5+x+2x+5=431 | | -4x+15=7 | | 80x-90x=0 | | A=-1+2 | | x+x+5+2x+10=431 | | (x-4)squared-81=0 | | 13/3*x=13/2 | | (3/2)x-11=20 | | -6-18=-21 | | (4-v)(5v+1)=0 | | -9(x-2w-3)= | | 3x+6y-5=3z | | B+15=-10 | | 104-40p+16+51=58+15p-8 | | 3x+8(x+7)=2(5x-4)+13 | | 2x+y-z=6 | | A-5=22 | | (4/9)^(-1/2) | | x^2+4x-3x-x=12-8 | | 4.9x^2+28x+2.5=0 | | -5x-4y+3z=20 | | (3000/6)-(33*4)/4= | | (3000/6)-(33x4)/4= | | x+2y-3z=16 | | 40+3q=77-3q | | 7x-13y=39 | | 9x-9=13x-9 | | -3.5x^2+0.3x+0.7=0 | | 2.75xW=44 | | 2.75xW+4=48 |

Equations solver categories