- simplify ( x + 3 ) ( x - 3 ) ( x² + 9 )
Answers
Answered by
1
Answer:
x⁴ - 81
Step-by-step explanation:
= (x² - 9)(x² + 9)
= (x²) ² - (9)²
= x⁴ - 81
Answered by
0
Answer:
(x^2-9)(x^2+9)
x^4-81
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