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# A-level Maths problem watch

1. Help

Simplify these expressions:

D^3 D^2.6 D^-1 D^-3.4

V^2 V^-1.2 V^1.5 V^2

(x^3)^2/3 (y^-2)^1/2 /√(z)^-4

2. Use the rules of indices. Everything you need to know should be found in this list of rules: http://mathematics.laerd.com/maths/indices-intro.php

For the first two questions remember that
3. x^2 x^2 /y for the last question is the answer
4. (Original post by MelonSponge)
Use the rules of indices. Everything you need to know should be found in this list of rules: http://mathematics.laerd.com/maths/indices-intro.php

For the first two questions remember that
x^2 x^2 /y for the last question
5. If you mean , then yes you have the right answer.

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