Factorise:m⁴+2m²n²+n⁴
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Answer:
(m^2+n^2)^2
Step-by-step explanation:
m^4+m^2n^2+m^2n^2+n^4
m^2(m^2+n^2)+n^2(m^2+n^2)
(m^2+n^2) (m^2+n^2)
(m^2+n^2)^2
Answer:
Step-by-step explanation:
(m^2+n^2)^2