A few days ago
solve the equation. 400x^-4 – 41x^-2 +1=0?
express answer in simplified form.
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A few days ago
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Let y = 1/x^2. Now you get
400y^2 – 41y+1 = 0
Plug those numbers into your quadratic equation (or factor the polynomial — are you sure that’s not -40, rather than -41?). That will give you up to 2 values for y. Plug those back into y = 1/x^2, solve for x, and you’re done.
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