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C1 Help needed !!

How to solve this ??
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Reply 1
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egoclips
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??
Reply 2
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NNB_Herath
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Original post by egoclips
??

this
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Reply 3
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egoclips
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Original post by NNB_Herath
this


Oh i'm trying in registration at school now
Original post by NNB_Herath
this



You could rearrange to 10x^1/2=x+9 and square both sides.
Or let k=x^1/2 and get a quadratic in k.
Or just solve it like it is above as a quadratic in x^1/2
let y=x12 y = x^\frac{1}{2}
so, 10y−y2−9=0 10y - y^2 -9 = 0

And go from there.
Reply 6
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egoclips
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let y=x^(1/2)

therefore, 10y -y^2 -9,

= -y^2 +10y -9

=???

gonna catch a lesson
Reply 7
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NNB_Herath
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@physicsmaths


Thanks@NotNotBatmanThanks
Reply 8
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NNB_Herath
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Original post by NotNotBatman
let y=x12 y = x^\frac{1}{2}
so, 10y−y2−9=0 10y - y^2 -9 = 0

And go from there.


Thanks a lot :smile:)
Original post by NNB_Herath
Thanks a lot :smile:)


No problem.
Original post by NNB_Herath
anThanks

No prob


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