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quickstudent
 one year ago
Can someone please check this for me?
Factoring Sum of Cubes
quickstudent
 one year ago
Can someone please check this for me? Factoring Sum of Cubes

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hartnn
 one year ago
Best ResponseYou've already chosen the best response.2which makes 3b and 3c also incorrect

quickstudent
 one year ago
Best ResponseYou've already chosen the best response.1Ok, let me review it a moment...

hartnn
 one year ago
Best ResponseYou've already chosen the best response.2sure, i was about to say, try to find the error on your own

hartnn
 one year ago
Best ResponseYou've already chosen the best response.2and the same mistake is done in 4. you correct one, you correct all!! :)

quickstudent
 one year ago
Best ResponseYou've already chosen the best response.1Hmmm, I don't see what's wrong there. Can you explain?

hartnn
 one year ago
Best ResponseYou've already chosen the best response.2length = 2t its cube = \( (2t)^3 = 8t^3 \)

hartnn
 one year ago
Best ResponseYou've already chosen the best response.2basically you forgot the brackets :P

quickstudent
 one year ago
Best ResponseYou've already chosen the best response.1Oh, okay. I'll try doing those again then :)

hartnn
 one year ago
Best ResponseYou've already chosen the best response.2sure, all 3 a,b,c and 4 a,b,c needs that correction. let me know when you're done, i'll review it again.

quickstudent
 one year ago
Best ResponseYou've already chosen the best response.1Here it is now, corrected :) @hartnn

hartnn
 one year ago
Best ResponseYou've already chosen the best response.2lets come to 3b now. \((2t)^3 + 12^3 = (2t+12)((2t)^2  (2t)\times 12) +12^2 \) makes sense?

hartnn
 one year ago
Best ResponseYou've already chosen the best response.2i missed the last bracket \((2t)^3 + 12^3 = (2t+12)((2t)^2  (2t)\times 12 +12^2)\)

hartnn
 one year ago
Best ResponseYou've already chosen the best response.2so your answer for 3b should be \((2t+12)(4t^2 24t +144)\)

hartnn
 one year ago
Best ResponseYou've already chosen the best response.2now for 3c, its (2t)^3 not (8t)^3 ... so (2*7)^3 + 12^3 = 14^3 +12^3 = .........

hartnn
 one year ago
Best ResponseYou've already chosen the best response.2same thing goes for 4b and 4c :)

hartnn
 one year ago
Best ResponseYou've already chosen the best response.2\((2t+12)(4t^2 24t +144)\) ^^ that can be further factorized \(8(t + 6)(t^2  6t + 36)\)

quickstudent
 one year ago
Best ResponseYou've already chosen the best response.1OK, now I've correct 3 and 4 again.

hartnn
 one year ago
Best ResponseYou've already chosen the best response.2everything else is correct :)

quickstudent
 one year ago
Best ResponseYou've already chosen the best response.1I've corrected that typo:) Thanks for helping me:)
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