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anonymous
 one year ago
Check my answers?
anonymous
 one year ago
Check my answers?

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abdullah1995
 one year ago
Best ResponseYou've already chosen the best response.2going through it, give me 2 mins please :)

abdullah1995
 one year ago
Best ResponseYou've already chosen the best response.2alright so for part a, the question is asking you the following things: 1. Name two things which are cube but different in size 2. Total volume of the two cubes as a sum You did answer part 1 by saying that one cube can be a shoe box and the other can be a bird cage, however i see some stuff that is not required, such as 18 inch, 3 inch and other dimensions.

abdullah1995
 one year ago
Best ResponseYou've already chosen the best response.2and then you wrote the expression 8a^3 + 2b^3 which is correct. for part A i think this is how it should look like http://prntscr.com/8hzysx

abdullah1995
 one year ago
Best ResponseYou've already chosen the best response.2Part b is correct. Just noticed that for part (a) you forgot to write b in 27b^3, so fix that.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0the part u have put a red line over. should i not write that?

abdullah1995
 one year ago
Best ResponseYou've already chosen the best response.2yes don't write that. The question does not require that information

abdullah1995
 one year ago
Best ResponseYou've already chosen the best response.2As far as i can see, part c does not correct. If you notice \[(2a+3b)(4a^26ab+9b^2) = 8a^3+27b^3\] So instead of putting a and b values in the factored form, just put them in the original equation which will be a lot easier to calculate

abdullah1995
 one year ago
Best ResponseYou've already chosen the best response.2\[(8*3)^3+ (27*5)^3 = 2474199\]

abdullah1995
 one year ago
Best ResponseYou've already chosen the best response.2no worries. If you don't understand anything just tag me here or send me a private msg. Good luck with your homework out there ! :)
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