# Maths AS help

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#1
I have these two past paper questions that I just don't understand what to do
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#2
First one
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#3
The other one, thanks to anyone who could help. I hate maths AS, so much harder to igcse. Does anyone have any tips?
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1 month ago
#4
For the first one, work out the length, so what is the equation?
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#5
Sqaure root of (d+4)^2 + -4^2 = (2 square root 13)^2
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1 month ago
#6
Ok
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1 month ago
#7
Solve it now
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1 month ago
#8
So

(2root13) ^2 = d^2 + 4d + 20

Then rearrange to make it into a quadratic then find two values of d
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1 month ago
#9
(Original post by sweetescobar)
Sqaure root of (d+4)^2 + -4^2 = (2 square root 13)^2
Did you get it?
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#10
(Original post by CaptainDuckie)
Did you get it?
Yes, thanks.
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