# Core 2 help - AQAWatch

#1
Hey could anybody help me differentiate this:

y = x + 3 + 8/x^4 (x^4 meaning x to the power 4)

I got an answer, which is -24x^-5 +1 however I am not confident with it and I am fairly certain it's wrong

Thanks for any help!
0
7 years ago
#2
Yes, you are slightly wrong, its 1 -32x^-5
because -4 times 8 is -32 not -24 :P.

Multiply by the power, and then reduce the power by 1.
1
7 years ago
#3
(Original post by raveen789)
Hey could anybody help me differentiate this:

y = x + 3 + 8/x^4 (x^4 meaning x to the power 4)

I got an answer, which is -24x^-5 +1 however I am not confident with it and I am fairly certain it's wrong

Thanks for any help!
put more brackets in or write it in latex (google it) so i know what ur asking
0
7 years ago
#4
(Original post by In One Ear)
Yes, you are slightly wrong, its 1 -32x^-5
because -4 times 8 is -32 not -24 :P.

Multiply by the power, and then reduce the power by 1.
ThIs.
0
#5
(Original post by In One Ear)
Yes, you are slightly wrong, its 1 -32x^-5
because -4 times 8 is -32 not -24 :P.

Multiply by the power, and then reduce the power by 1.
Ahh yeah thanks lol I always make stupid mistakes, thanks for the help!
0
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