Math Is Fun Forum

waven

Member

Registered: 2009-10-06

Posts: 11

Omg Surds....

hi, i have surds problem and this is what i did but i got it wrong and i have no idea where, so this is as far as i could go

thanks

John E. Franklin

Member

Registered: 2005-08-29

Posts: 3,588

Re: Omg Surds....

You are right, just divide top and bottom by 5 and you get the textbook answer.

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igloo myrtilles fourmis

bobbym

bumpkin

From: Bumpkinland

Registered: 2009-04-12

Posts: 109,606

Re: Omg Surds....

Hi waven;

All your steps are correct and as John points out division of the numerator and denominator by 5 results in the book answer. I have no idea why you got it wrong unless your teacher wanted you to use a specific method and you didn't.

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In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

mathsyperson

Moderator

Registered: 2005-06-22

Posts: 4,900

Re: Omg Surds....

All the steps are correct, but if the question was to simplify it then it's understandably not the right answer.

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Why did the vector cross the road?
It wanted to be normal.