y^4 - 81. solve this QUESTION
FACTORISE IT
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0
Answer:
y⁴-81
(y²-9²)
(y²+9)(y²-9)
(y²+9)(y²-3²)
(y²+9)(y+3)(y-3)
Answered by
0
(
y
2
+
9
)
(
y
+
3
)
(
y
−
3
)
plz make my answer brilliant if my answer is correct
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