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Harder Surds Questions (1 Viewer)

bujolover

Active Member
Joined
Jan 5, 2017
Messages
154
Gender
Undisclosed
HSC
2018
Hi guys,
Yet more questions... :/

Q1. Harder Surds Question.PNG
I feel like the given answer is wrong...I keep getting a = n + 1, but the answer says a = n - 1.

Q2. I'm actually not sure how to do this question; I don't feel like the given answer is wrong, so please provide working out for this question if I'm wrong.
Harder Surds Question 2.PNG... I got a = 8√(x11), but the given answer says 8x11.

Thanks in advance! (You don't have to answer both questions in the same post. :))
 

1729

Active Member
Joined
Jan 8, 2017
Messages
199
Location
Sydney
Gender
Male
HSC
2018
Hi guys,
Yet more questions... :/

Q1. View attachment 33902
I feel like the given answer is wrong...I keep getting a = n + 1, but the answer says a = n - 1.

Q2. I'm actually not sure how to do this question; I don't feel like the given answer is wrong, so please provide working out for this question if I'm wrong.
View attachment 33903... I got a = 8√(x11), but the given answer says 8x11.

Thanks in advance! (You don't have to answer both questions in the same post. :))
 

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