2x^2=3-4x

Simple and best practice solution for 2x^2=3-4x 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 2x^2=3-4x equation:


Simplifying
2x2 = 3 + -4x

Solving
2x2 = 3 + -4x

Solving for variable 'x'.

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

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

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

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

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

Divide each side by '2'.
-1.5 + 2x + x2 = 0

Move the constant term to the right:

Add '1.5' to each side of the equation.
-1.5 + 2x + 1.5 + x2 = 0 + 1.5

Reorder the terms:
-1.5 + 1.5 + 2x + x2 = 0 + 1.5

Combine like terms: -1.5 + 1.5 = 0.0
0.0 + 2x + x2 = 0 + 1.5
2x + x2 = 0 + 1.5

Combine like terms: 0 + 1.5 = 1.5
2x + x2 = 1.5

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 = 1.5 + 1

Reorder the terms:
1 + 2x + x2 = 1.5 + 1

Combine like terms: 1.5 + 1 = 2.5
1 + 2x + x2 = 2.5

Factor a perfect square on the left side:
(x + 1)(x + 1) = 2.5

Calculate the square root of the right side: 1.58113883

Break this problem into two subproblems by setting 
(x + 1) equal to 1.58113883 and -1.58113883.

Subproblem 1

x + 1 = 1.58113883 Simplifying x + 1 = 1.58113883 Reorder the terms: 1 + x = 1.58113883 Solving 1 + x = 1.58113883 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 = 1.58113883 + -1 Combine like terms: 1 + -1 = 0 0 + x = 1.58113883 + -1 x = 1.58113883 + -1 Combine like terms: 1.58113883 + -1 = 0.58113883 x = 0.58113883 Simplifying x = 0.58113883

Subproblem 2

x + 1 = -1.58113883 Simplifying x + 1 = -1.58113883 Reorder the terms: 1 + x = -1.58113883 Solving 1 + x = -1.58113883 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 = -1.58113883 + -1 Combine like terms: 1 + -1 = 0 0 + x = -1.58113883 + -1 x = -1.58113883 + -1 Combine like terms: -1.58113883 + -1 = -2.58113883 x = -2.58113883 Simplifying x = -2.58113883

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.58113883, -2.58113883}

See similar equations:

| 4(d+6)+1=-11 | | 4(b+6)+1=-11 | | 7x+2y=-17 | | -1+1= | | B-(-65)=15 | | -8+8+5+9+(-5)+6+(-9)= | | -4+t=7 | | -b-5+2b=16 | | x-(-12)=-5 | | -4+12-3x=5 | | y=x^2+1 | | 5x-6-7x=2 | | 2x-7(x-4)=16 | | 18=4q-2 | | 5x+3=2(x-7) | | -2b+8=-16 | | -2x-10=8 | | y=-2x-2 | | 0.9w-0.6w+0.2w=3 | | 0-0.9w-0.6w+0.2w=3 | | 2x+14=6x+26 | | 3(-2x-4)=2(x+8) | | 23-4u=11 | | 9x-7x-4x=-14 | | 2x-6=-4 | | 4x+x-6x=1 | | 15x-7+19x-15=180 | | 3(2x-4)=64 | | -2x+-3=-7 | | 5(z+8)-(3+9z)=5z | | r+5.1=-3.2 | | 3c-7(-c+4)=-2(c-5)+6c |

Equations solver categories