(a²−1) (a²+1) =what is the answer plz tell I want to know
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Answer:
a^4 - 1
Step-by-step explanation:
we have,
(a²-1)(a²+1)
we know,
(a-b)(a+b) = a²- b²
so,
(a²)² - (1)² = a^4 - 1
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