p4-13p2q2+4q4 Factorise
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Answer:
the answer is (p²-2q²-3pq)(p²-2q²+3pq)
Step-by-step explanation:
p⁴-4p²q²+4q⁴-9p²q²
(p²)² - 2*p²*2q² + (2q²)² - (3pq)²
(p²-2q²)²-(3pq)²
(p²-2q²+3pq) (p²-2q²-3pq)
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