Ana.stasia
Junior Member
- Joined
- Sep 28, 2020
- Messages
- 118
Any advice on how to start doing this:
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IRRATIONAL EQUATION HELP
- Thread starter Ana.stasia
- Start date
D
Deleted member 4993
Guest
Use
a^3 + b^3 = (a + b)(a^2 + b^2 - ab)
Ana.stasia
Junior Member
- Joined
- Sep 28, 2020
- Messages
- 118
Use
a^3 + b^3 = (a + b)(a^2 + b^2 - ab)
how
D
Deleted member 4993
Guest
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
No work yet!
Next hint: Set:
a = (8-x)^(1/3) .................. and..................................b = (27+x)^(1/3)