(a 2 + b 2 ) (– a 2 + b 2 ) use suitable idendity
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Answer:
(b⁴-a⁴)
Step-by-step explanation:
(a²+b²)(-a²+b²)
= (-a²)²+(b²)²
= (-a⁴+b⁴)
= (b⁴-a⁴)
using formula (x+y) (x-y) = x²-y²
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