Question

factorise 54m²n + 81m⁴n²​

Answer 1

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Answer 2

Step-by-step explanation:

$54 {m}^{2} n + 81 {m}^{4} {n}^{2} \\ 9 {m}^{2} n(6 + 9 {m}^{2} n) \\ 9 {m}^{2}n \times 3(2 + 3 {m}^{2} n) \\ 27{m}^{2}n(2 + 3 {m}^{2} n)$