Question

please ans this question
factorise the following expression 9m4-24m2n2+16n4-256
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Answer 1

Step-by-step explanation:

9m⁴-24m²n²+16n⁴-256

=(3m²)²- 2(3m²)(4n²)+(4n²)²-(16)²

=(3m²-4n²)²-(16)²

you can develop the answer from this