a^4-12a^2-16=0

Simple and best practice solution for a^4-12a^2-16=0 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 a^4-12a^2-16=0 equation:


Simplifying
a4 + -12a2 + -16 = 0

Reorder the terms:
-16 + -12a2 + a4 = 0

Solving
-16 + -12a2 + a4 = 0

Solving for variable 'a'.

Begin completing the square.

Move the constant term to the right:

Add '16' to each side of the equation.
-16 + -12a2 + 16 + a4 = 0 + 16

Reorder the terms:
-16 + 16 + -12a2 + a4 = 0 + 16

Combine like terms: -16 + 16 = 0
0 + -12a2 + a4 = 0 + 16
-12a2 + a4 = 0 + 16

Combine like terms: 0 + 16 = 16
-12a2 + a4 = 16

The a term is -12a2.  Take half its coefficient (-6).
Square it (36) and add it to both sides.

Add '36' to each side of the equation.
-12a2 + 36 + a4 = 16 + 36

Reorder the terms:
36 + -12a2 + a4 = 16 + 36

Combine like terms: 16 + 36 = 52
36 + -12a2 + a4 = 52

Factor a perfect square on the left side:
(a2 + -6)(a2 + -6) = 52

Calculate the square root of the right side: 7.211102551

Break this problem into two subproblems by setting 
(a2 + -6) equal to 7.211102551 and -7.211102551.

Subproblem 1

a2 + -6 = 7.211102551 Simplifying a2 + -6 = 7.211102551 Reorder the terms: -6 + a2 = 7.211102551 Solving -6 + a2 = 7.211102551 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '6' to each side of the equation. -6 + 6 + a2 = 7.211102551 + 6 Combine like terms: -6 + 6 = 0 0 + a2 = 7.211102551 + 6 a2 = 7.211102551 + 6 Combine like terms: 7.211102551 + 6 = 13.211102551 a2 = 13.211102551 Simplifying a2 = 13.211102551 Take the square root of each side: a = {-3.634708042, 3.634708042}

Subproblem 2

a2 + -6 = -7.211102551 Simplifying a2 + -6 = -7.211102551 Reorder the terms: -6 + a2 = -7.211102551 Solving -6 + a2 = -7.211102551 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '6' to each side of the equation. -6 + 6 + a2 = -7.211102551 + 6 Combine like terms: -6 + 6 = 0 0 + a2 = -7.211102551 + 6 a2 = -7.211102551 + 6 Combine like terms: -7.211102551 + 6 = -1.211102551 a2 = -1.211102551 Simplifying a2 = -1.211102551 Reorder the terms: 1.211102551 + a2 = -1.211102551 + 1.211102551 Combine like terms: -1.211102551 + 1.211102551 = 0.000000000 1.211102551 + a2 = 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:

| -58+42y=-79 | | -77=-12y-35 | | x-(x*0.25)=800 | | 4m^7=16m^5 | | 10y-17=-25 | | 6x+5y+7z-3x+4z-7y= | | -9x-10y-7x+14y= | | 10x+6=4x-2 | | -(x-2y+4)-(3y+9-4x)= | | 9x+2x-6x=13+7 | | 8*x*0.5=24 | | 2(55-1.5y)+3y=110 | | -x+4=x-6 | | (5+w)(w)+60=(8+w)(w+3) | | 5.52=2.3t | | x-1+3x=5+2x+4 | | -5(x-1)=2(x+8) | | x-1+2x=2x+5+4 | | -4418+-45*x^2+x^3=0 | | 0.25x+1=3 | | 2*x^3-90*x^2-8836=0 | | 4x+3=7+3x | | 3x-12=-5x+20 | | x+xy+y-7=0 | | x+22=(x-60+22)*2 | | x+10y+8Z=100 | | 3r+4=13r+9 | | x+22=x-60+22*2 | | 2x-3y=5x | | -10-5x=11-3x | | (x^2-3x+9)=0 | | X=12-75+91 |

Equations solver categories