4x^2=2+5x

Simple and best practice solution for 4x^2=2+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 4x^2=2+5x equation:


Simplifying
4x2 = 2 + 5x

Solving
4x2 = 2 + 5x

Solving for variable 'x'.

Reorder the terms:
-2 + -5x + 4x2 = 2 + 5x + -2 + -5x

Reorder the terms:
-2 + -5x + 4x2 = 2 + -2 + 5x + -5x

Combine like terms: 2 + -2 = 0
-2 + -5x + 4x2 = 0 + 5x + -5x
-2 + -5x + 4x2 = 5x + -5x

Combine like terms: 5x + -5x = 0
-2 + -5x + 4x2 = 0

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

Divide each side by '4'.
-0.5 + -1.25x + x2 = 0

Move the constant term to the right:

Add '0.5' to each side of the equation.
-0.5 + -1.25x + 0.5 + x2 = 0 + 0.5

Reorder the terms:
-0.5 + 0.5 + -1.25x + x2 = 0 + 0.5

Combine like terms: -0.5 + 0.5 = 0.0
0.0 + -1.25x + x2 = 0 + 0.5
-1.25x + x2 = 0 + 0.5

Combine like terms: 0 + 0.5 = 0.5
-1.25x + x2 = 0.5

The x term is -1.25x.  Take half its coefficient (-0.625).
Square it (0.390625) and add it to both sides.

Add '0.390625' to each side of the equation.
-1.25x + 0.390625 + x2 = 0.5 + 0.390625

Reorder the terms:
0.390625 + -1.25x + x2 = 0.5 + 0.390625

Combine like terms: 0.5 + 0.390625 = 0.890625
0.390625 + -1.25x + x2 = 0.890625

Factor a perfect square on the left side:
(x + -0.625)(x + -0.625) = 0.890625

Calculate the square root of the right side: 0.943729304

Break this problem into two subproblems by setting 
(x + -0.625) equal to 0.943729304 and -0.943729304.

Subproblem 1

x + -0.625 = 0.943729304 Simplifying x + -0.625 = 0.943729304 Reorder the terms: -0.625 + x = 0.943729304 Solving -0.625 + x = 0.943729304 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.625' to each side of the equation. -0.625 + 0.625 + x = 0.943729304 + 0.625 Combine like terms: -0.625 + 0.625 = 0.000 0.000 + x = 0.943729304 + 0.625 x = 0.943729304 + 0.625 Combine like terms: 0.943729304 + 0.625 = 1.568729304 x = 1.568729304 Simplifying x = 1.568729304

Subproblem 2

x + -0.625 = -0.943729304 Simplifying x + -0.625 = -0.943729304 Reorder the terms: -0.625 + x = -0.943729304 Solving -0.625 + x = -0.943729304 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.625' to each side of the equation. -0.625 + 0.625 + x = -0.943729304 + 0.625 Combine like terms: -0.625 + 0.625 = 0.000 0.000 + x = -0.943729304 + 0.625 x = -0.943729304 + 0.625 Combine like terms: -0.943729304 + 0.625 = -0.318729304 x = -0.318729304 Simplifying x = -0.318729304

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1.568729304, -0.318729304}

See similar equations:

| z^4=-36 | | -9x^2-15x+20=0 | | -9x^2-15+20=0 | | (2x+6)+(-5+4)= | | 7x^2-7x-3=0 | | -42-2x=2x+13 | | 8=2x^2+4x-14 | | 3y+2x=73 | | 2/3(x+4)=1/3(2x-6) | | Tx=Sy | | 3m-2-5m=12 | | 4x-19=47 | | 4x^2-21x+37=3x+10 | | 11x+5=14x+10 | | 3+1/2(5x+2)=14 | | -3x^2-x+5=0 | | (n+2)*6=36 | | 6x+x=294 | | -15=-6+4w | | x^2+7x-3=3x+2 | | -15=-6+4e | | 24+3x=6+5x | | x^2+10x-22=5x+2 | | 0.02x=0.06x | | 4x-29=x+36 | | x^2-x-9=3 | | z/4=-7 | | -24+3x=6+5x | | 4x^2+14x+12=0 | | 6x+10+7x+15x+2=180 | | 135(x+5)=154x | | n+37=48 |

Equations solver categories