4x^2-38x+47=2

Simple and best practice solution for 4x^2-38x+47=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 4x^2-38x+47=2 equation:


Simplifying
4x2 + -38x + 47 = 2

Reorder the terms:
47 + -38x + 4x2 = 2

Solving
47 + -38x + 4x2 = 2

Solving for variable 'x'.

Reorder the terms:
47 + -2 + -38x + 4x2 = 2 + -2

Combine like terms: 47 + -2 = 45
45 + -38x + 4x2 = 2 + -2

Combine like terms: 2 + -2 = 0
45 + -38x + 4x2 = 0

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

Divide each side by '4'.
11.25 + -9.5x + x2 = 0

Move the constant term to the right:

Add '-11.25' to each side of the equation.
11.25 + -9.5x + -11.25 + x2 = 0 + -11.25

Reorder the terms:
11.25 + -11.25 + -9.5x + x2 = 0 + -11.25

Combine like terms: 11.25 + -11.25 = 0.00
0.00 + -9.5x + x2 = 0 + -11.25
-9.5x + x2 = 0 + -11.25

Combine like terms: 0 + -11.25 = -11.25
-9.5x + x2 = -11.25

The x term is -9.5x.  Take half its coefficient (-4.75).
Square it (22.5625) and add it to both sides.

Add '22.5625' to each side of the equation.
-9.5x + 22.5625 + x2 = -11.25 + 22.5625

Reorder the terms:
22.5625 + -9.5x + x2 = -11.25 + 22.5625

Combine like terms: -11.25 + 22.5625 = 11.3125
22.5625 + -9.5x + x2 = 11.3125

Factor a perfect square on the left side:
(x + -4.75)(x + -4.75) = 11.3125

Calculate the square root of the right side: 3.363406012

Break this problem into two subproblems by setting 
(x + -4.75) equal to 3.363406012 and -3.363406012.

Subproblem 1

x + -4.75 = 3.363406012 Simplifying x + -4.75 = 3.363406012 Reorder the terms: -4.75 + x = 3.363406012 Solving -4.75 + x = 3.363406012 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '4.75' to each side of the equation. -4.75 + 4.75 + x = 3.363406012 + 4.75 Combine like terms: -4.75 + 4.75 = 0.00 0.00 + x = 3.363406012 + 4.75 x = 3.363406012 + 4.75 Combine like terms: 3.363406012 + 4.75 = 8.113406012 x = 8.113406012 Simplifying x = 8.113406012

Subproblem 2

x + -4.75 = -3.363406012 Simplifying x + -4.75 = -3.363406012 Reorder the terms: -4.75 + x = -3.363406012 Solving -4.75 + x = -3.363406012 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '4.75' to each side of the equation. -4.75 + 4.75 + x = -3.363406012 + 4.75 Combine like terms: -4.75 + 4.75 = 0.00 0.00 + x = -3.363406012 + 4.75 x = -3.363406012 + 4.75 Combine like terms: -3.363406012 + 4.75 = 1.386593988 x = 1.386593988 Simplifying x = 1.386593988

Solution

The solution to the problem is based on the solutions from the subproblems. x = {8.113406012, 1.386593988}

See similar equations:

| 4(x/4-10)=-1(4) | | X+2361=14165 | | 28=5x-3 | | 55x+25=630 | | -1-10=x+4 | | 7+2n-4=9n+7-6n | | 0.4x-1.8=2.4x+2.5 | | 5p+2=100 | | 2x-32=x | | -2y-14=-x-1 | | 32/2x=x | | x^2-4x-7=y | | 32-2x=x | | (5y+2)-(9y+9)= | | 38*2.4= | | (xy+x^2-30y^2)= | | 2(5r-8)-3(r+8)= | | 9-(8x-3)=8x+12 | | 7(t-6)+5t=6(2t+4)-8 | | 7/6*-2/5*(-7) | | x^2-8x-94=0 | | 6n+18=24 | | 2x+y+z=-3 | | .1x+x=54000 | | 2x-1=103 | | 2x+y+z= | | n^3+2n=61 | | 3/17=y/6 | | 13x-6=46 | | 7p+12-9p-2-8p=0 | | X*x+2*3=41 | | 3x+15-9=2[2x+2] |

Equations solver categories