Any advice on how to start doing this:
A Ana.stasia Junior Member Joined Sep 28, 2020 Messages 118 Dec 11, 2020 #1 Any advice on how to start doing this: Last edited by a moderator: Dec 11, 2020
D Deleted member 4993 Guest Dec 11, 2020 #2 Ana.stasia said: Any advice on how to start doing this: View attachment 23654 Click to expand... Use a^3 + b^3 = (a + b)(a^2 + b^2 - ab)
Ana.stasia said: Any advice on how to start doing this: View attachment 23654 Click to expand... Use a^3 + b^3 = (a + b)(a^2 + b^2 - ab)
A Ana.stasia Junior Member Joined Sep 28, 2020 Messages 118 Dec 11, 2020 #3 Subhotosh Khan said: Use a^3 + b^3 = (a + b)(a^2 + b^2 - ab) Click to expand... how
D Deleted member 4993 Guest Dec 11, 2020 #4 Ana.stasia said: how Click to expand... You have to do better than that! Does any part of the hint look like a part of the "assigned" equation? Think about substitution of parts of "assigned" equation with simpler "alphabets"?
Ana.stasia said: how Click to expand... You have to do better than that! Does any part of the hint look like a part of the "assigned" equation? Think about substitution of parts of "assigned" equation with simpler "alphabets"?
D Deleted member 4993 Guest Dec 11, 2020 #5 Ana.stasia said: how Click to expand... No work yet! Next hint: Set: a = (8-x)^(1/3) .................. and..................................b = (27+x)^(1/3)
Ana.stasia said: how Click to expand... No work yet! Next hint: Set: a = (8-x)^(1/3) .................. and..................................b = (27+x)^(1/3)