Express x³ + 27 as factored form.
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Express x³ + 27 as factored form.
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Answer:
( X - 3 ) (X ^2 + 9 + 3x )
Step-by-step explanation:
X ^ 3 - 27
= X ^ 3 - ( 3 ) ^3
using identity - a ^ 3 - b ^ 3 = ( a - b ) ( a ^ 2 + b ^ 2 + ab )
= ( X - 3 ) (X ^2 + 9 + 3x )