Factorize : x⁴-9y⁴ please do it fast
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=x⁴-9y⁴
=(x²)²-(3y²)²
=(x²+3y²)(x²-3y²)
=(x²+3y²)[x²-(√3y)²]
=(x²+3y²)(x+√3y)(x-√3y)
Step-by-step explanation:
Use formula : a²-b²=(a+b)(a-b)
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