Given that x+(4/x)=3, then x^2+(16/(x^2))?
回答 (2)
2014-03-01 4:41 pm
wat u need to do is solve first equation for x, then substitute into 2nd.....
x^2/x + 4/x = 3x/x
x^2 - 3x = -4
x(x-3) = -4
x = -4/x-3
then substittute that in... happy math!
x^2/x + 4/x = 3x/x
x^2 - 3x = -4
x(x-3) = -4
x = -4/x-3
then substittute that in... happy math!
收錄日期: 2021-04-20 20:40:01
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