(a2 +b2)(-a2+b2)
2 means it's square
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Answer:
b4-a4
Step-by-step explanation:
(a² + b²) (-a² + b²)
= (b² + a²)(b² - a²)
(b + a)(b - a) = b² - a²
= (b²)² - (a²)²
= b⁴ - a⁴
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