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# maths question watch

1. on the gcse aqa non calculator paper, there was a question which instructed to leave the answer as a square root. the answer was root 125. which i simplified to 5 root 5. is 5 root 5 a square root or a surd. if it is a surd do you think i will be marked down for it?
2. (Original post by Undry1)
on the gcse aqa non calculator paper, there was a question which instructed to leave the answer as a square root. the answer was root 125. which i simplified to 5 root 5. is 5 root 5 a square root or a surd. if it is a surd do you think i will be marked down for it?
5√5 is a surd, √125 is a square root unsuprisingly!

If you have √125 as an answer somewhere in the calculation then you'll probably get the marks i guess.
3. (Original post by Absolution)
5√5 is a surd, √125 is a square root unsuprisingly!

If you have √125 as an answer somewhere in the calculation then you'll probably get the marks i guess.
thanks. thats what i thought but i needed the reassurance . just in case.
4. (Original post by Undry1)
thanks. thats what i thought but i needed the reassurance . just in case.
yeah square root or surd, you did all the working that was necessary, the main thing is that they didnt want you to write a bunch of decimals, probably cos it looks untidy and as they are irrational never actually represent the actuall answer
5. (Original post by KerChing)
yeah square root or surd, you did all the working that was necessary, the main thing is that they didnt want you to write a bunch of decimals, probably cos it looks untidy and as they are irrational never actually represent the actuall answer
even more reassurance

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