a^4+2a^2-15=0

Simple and best practice solution for a^4+2a^2-15=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+2a^2-15=0 equation:


Simplifying
a4 + 2a2 + -15 = 0

Reorder the terms:
-15 + 2a2 + a4 = 0

Solving
-15 + 2a2 + a4 = 0

Solving for variable 'a'.

Factor a trinomial.
(-5 + -1a2)(3 + -1a2) = 0

Subproblem 1

Set the factor '(-5 + -1a2)' equal to zero and attempt to solve: Simplifying -5 + -1a2 = 0 Solving -5 + -1a2 = 0 Move all terms containing a to the left, all other terms to the right. Add '5' to each side of the equation. -5 + 5 + -1a2 = 0 + 5 Combine like terms: -5 + 5 = 0 0 + -1a2 = 0 + 5 -1a2 = 0 + 5 Combine like terms: 0 + 5 = 5 -1a2 = 5 Divide each side by '-1'. a2 = -5 Simplifying a2 = -5 The solution to this equation could not be determined. This subproblem is being ignored because a solution could not be determined.

Subproblem 2

Set the factor '(3 + -1a2)' equal to zero and attempt to solve: Simplifying 3 + -1a2 = 0 Solving 3 + -1a2 = 0 Move all terms containing a to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + -1a2 = 0 + -3 Combine like terms: 3 + -3 = 0 0 + -1a2 = 0 + -3 -1a2 = 0 + -3 Combine like terms: 0 + -3 = -3 -1a2 = -3 Divide each side by '-1'. a2 = 3 Simplifying a2 = 3 Take the square root of each side: a = {-1.732050808, 1.732050808}

Solution

a = {-1.732050808, 1.732050808}

See similar equations:

| Y-77/3=7 | | 2(4e-1)=e+2 | | 2k-3x=-6 | | 5-(2x+2)= | | 2y^2-6y+18= | | -8x-9=41 | | K-2/3=11/6 | | 3(1-7a)-3a=3(a+1) | | f(x)=72(1.25)x | | -8(x+3)=-4x-40 | | 4+1x-3x= | | -18x+-14=-158 | | 4h-h-2-5= | | X/4*4=3 | | y=((3x-1)/4) | | 8x-10+3=5x-7+3x | | X/3=43 | | -16t^2+2t+0=h | | 1/3x11 | | 1/x*24=4 | | 8y=6y+4 | | 3x+50=x+90 | | 35/x=15/18 | | 2(3x+4)=6+4x+18 | | yes=bitch | | 4x=45-x | | 36-x=-35 | | 4x+48=2x+18 | | 4/5•20= | | 50-3x=x+26 | | -7+3x+3x=-19 | | X/4*8=2 |

Equations solver categories