How do you factor #a^3 + b^3#?
1 Answer
Feb 19, 2017
Explanation:
In order to factor
we must recognize that
and
The factor pattern for a binomial of perfect cubes is
The factor of
The second parenthesis has
the factor of
the factor of
and the factor of
For the signs we use the SOAP rule.
The First sign is the SAME as the sign in the binomial.
The Second sign is OPPOSITE of the sign in the binomial.
The Third sign is ALWAYS POSITIVE.
S- SAME
O- OPPOSITE
A- ALWAYS
P- POSITIVE