-3-4x=-2x^2

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


Simplifying
-3 + -4x = -2x2

Solving
-3 + -4x = -2x2

Solving for variable 'x'.

Combine like terms: -2x2 + 2x2 = 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 = 2.58113883 x = 2.58113883 Simplifying x = 2.58113883

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 = -0.58113883 x = -0.58113883 Simplifying x = -0.58113883

Solution

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

See similar equations:

| (2g+3)(4g+3)=0 | | y=-15/13x+33/45 | | 7v=11.2 | | 3t-t-6=t-5 | | z^2-10z=-13 | | N^2-16n=-64 | | u=v-15 | | 4(6)-3y=18 | | -28+8= | | 4[3+n]=[4*3]+[4*2] | | 16x-2y=60 | | 20x^3-44x^2-48x= | | G-(5-g)=g-7 | | 3X+(3X-9)+((3X-9)/2)+X=243 | | -11h+18+12h-17= | | (2X+9)+2X+X+((2X+9)/3)=243 | | 3X+1=7+5 | | -0.7(0.85-6x)=4.6x | | -18-6x=14-10 | | 3x^2-36=4x^2 | | X+(X-9)+((X-9)/2)+(X/3)=243 | | x^2-33x+140=0 | | 15g-22=-37 | | 25x+30=5x+50 | | (X+9)+X+(X/2)+((X+9)/3)=243 | | 236-3x=42+21 | | 14-8x=64-22x | | 2+2p=4 | | 5k+20-2k+4=6k-3 | | 6/x+3=9/5+2x | | 7X+(3X-9)/2=252 | | 2.1=(x-500)/80 |

Equations solver categories