leave answer in radical form. Show all work please.

solve : x-5(sqrtx)+6=0 by factoring left side directly (no substitution)

solve : same question but this time isolate the radical and then squaring each side

Thank you so much

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- September 24th 2010, 06:14 AMnrub87Need help solving equations.
leave answer in radical form. Show all work please.

solve : x-5(sqrtx)+6=0 by factoring left side directly (no substitution)

solve : same question but this time isolate the radical and then squaring each side

Thank you so much - September 24th 2010, 06:20 AMemakarov
For the first question, you can denote t = (x^4 - 1)^3. Then you will get a quadratic equation in t.

For the rest, what have you tried and what difficulties are you having? - September 24th 2010, 06:56 AMnrub87
i got the first one now.. thanks!

But im totaly stuck on the other to. I don't know how to begin, or continue for that matter! ;) - September 24th 2010, 07:42 AMemakarovQuote:

x-5(sqrtx)+6

Quote:

same question but this time isolate the radical and then squaring each side