Answer:
x³-9x²+27x-27
Step-by-step explanation:
(x-3)³
EXPAND
x³-3x²×3+3x×3² -3³
COMBINE
x³-9x²+3x×9-27
multiply 3x ×9
Letters of the Alphabet
Answer:irrational
f−1(x)=√x−3,−√x−3
