9+4x^2+x^4=13

Simple and best practice solution for 9+4x^2+x^4=13 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 9+4x^2+x^4=13 equation:


Simplifying
9 + 4x2 + x4 = 13

Solving
9 + 4x2 + x4 = 13

Solving for variable 'x'.

Reorder the terms:
9 + -13 + 4x2 + x4 = 13 + -13

Combine like terms: 9 + -13 = -4
-4 + 4x2 + x4 = 13 + -13

Combine like terms: 13 + -13 = 0
-4 + 4x2 + x4 = 0

Begin completing the square.

Move the constant term to the right:

Add '4' to each side of the equation.
-4 + 4x2 + 4 + x4 = 0 + 4

Reorder the terms:
-4 + 4 + 4x2 + x4 = 0 + 4

Combine like terms: -4 + 4 = 0
0 + 4x2 + x4 = 0 + 4
4x2 + x4 = 0 + 4

Combine like terms: 0 + 4 = 4
4x2 + x4 = 4

The x term is 4x2.  Take half its coefficient (2).
Square it (4) and add it to both sides.

Add '4' to each side of the equation.
4x2 + 4 + x4 = 4 + 4

Reorder the terms:
4 + 4x2 + x4 = 4 + 4

Combine like terms: 4 + 4 = 8
4 + 4x2 + x4 = 8

Factor a perfect square on the left side:
(x2 + 2)(x2 + 2) = 8

Calculate the square root of the right side: 2.828427125

Break this problem into two subproblems by setting 
(x2 + 2) equal to 2.828427125 and -2.828427125.

Subproblem 1

x2 + 2 = 2.828427125 Simplifying x2 + 2 = 2.828427125 Reorder the terms: 2 + x2 = 2.828427125 Solving 2 + x2 = 2.828427125 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + x2 = 2.828427125 + -2 Combine like terms: 2 + -2 = 0 0 + x2 = 2.828427125 + -2 x2 = 2.828427125 + -2 Combine like terms: 2.828427125 + -2 = 0.828427125 x2 = 0.828427125 Simplifying x2 = 0.828427125 Take the square root of each side: x = {-0.910179721, 0.910179721}

Subproblem 2

x2 + 2 = -2.828427125 Simplifying x2 + 2 = -2.828427125 Reorder the terms: 2 + x2 = -2.828427125 Solving 2 + x2 = -2.828427125 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + x2 = -2.828427125 + -2 Combine like terms: 2 + -2 = 0 0 + x2 = -2.828427125 + -2 x2 = -2.828427125 + -2 Combine like terms: -2.828427125 + -2 = -4.828427125 x2 = -4.828427125 Simplifying x2 = -4.828427125 Reorder the terms: 4.828427125 + x2 = -4.828427125 + 4.828427125 Combine like terms: -4.828427125 + 4.828427125 = 0.000000000 4.828427125 + x2 = 0.000000000 The solution to this equation could not be determined.This subproblem is being ignored because a solution could not be determined. The solution to this equation could not be determined.

See similar equations:

| 2y=0-3x | | y^2+y+20=0 | | log(5)(-8-4x)=1 | | h^2+6h-21=0 | | 27 x+29=38 | | 50+3n=c | | 6.1=-Log(x) | | -2/3-5/6 | | 41x^2-13x=7x-9x^2 | | 6y-5= | | 0.1+0.1+0.05= | | 3a^2b+2a^2b^2+-ab^2+a^2b^2= | | 16x+44-3x=239 | | 8x-1/2-2x=3 | | 9=4-3 | | 9x-5x-2=-2 | | 7m-8.5=19.5 | | -33=3(x-1) | | 18k-3=27+3h | | 34=4w-2 | | 18k-3=27+3 | | -20+-1x+x^2=0 | | (8x+2)(8x+16)=0 | | y/3=-28 | | 50=-y/2 | | x+(x*1.7)=300000 | | Log^5(4x-7)=2 | | 2(x^2-x-20)=0 | | 19.2=w/3 | | 6(4x+5)=(3x+8)+3 | | 16x^2+29x-12=0 | | x+(x*1.7)=1500 |

Equations solver categories