You can put this solution on YOUR website! 7x^4-6x^2-1=0
7x^4-7x^2+1x^2-1=0
(7x^4-7x^2)+(1x^2-1)=0
7x^2(x^2-1)+1(x^2-1)=0
(x^2-1)(7x^2+1)=0
(x+1)(x-1)(7x^2+1)=0
The real soltutions are:
x+1=0 and x-1=0
x+1-1=0-1 and x-1+1=0+1 and
If you are also supposed to find the complex solution:
7x^2+1=0
7x^2+1-1=0-1
7x^2=-1
7x^2/7=-1/7
x^2=-1/7
If you've never heard of complex solutions and imaginary numbers ignore the last one, 7x^2+1 is prime and will not yeild a real soltuion so you can ignore it if you aren't using complex numbers yet.
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Happy Calculating!!!
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