Hey I'm having problems figuring out how to do this surd. 16/(√20+√12) I know the answer is 4(√5-√3) but can you plz give me a step by step answer on how to do this...thanks.
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Originally Posted by digideens Hey I'm having problems figuring out how to do this surd. 16/(√20+√12) I know the answer is 4(√5-√3) but can you plz give me a step by step answer on how to do this...thanks. Multiply both top and bottom by : RonL
is there another step between the =16(√20-√12)/20-12 and = 4(√5-√3)
Originally Posted by digideens is there another step between the =16(√20-√12)/20-12 and = 4(√5-√3) Yes, You have, Simplyfy fraction to Now, Thus, Factor the two,
Oh right, I get it now..thanks a lot.
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