SOLUTION: Solve: {{{x^4-13x^2+36=0}}}

Question 134942: Solve:
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!

Start with the given equation

Factor the left side (note: if you need help with factoring, check out this solver)

Factor by use of the difference of squares to get . Factor by use of the difference of squares to get

Now set each factor equal to zero:

, , or

Now solve for x for each factor:

, , or

So our answer is

, , or
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