Question

(m²-n²)² equals 

plz help me​

Answer 1

Answer:

I am sorry, if my answer is wrong

Step-by-step explanation:

(m*m - n*n)²

m*m*m*m - n*n*n*n

m⁴ - n⁴

Answer 2

$m {}^{2}(m {}^{2} - n {}^{2}) - n {}^{2}(m {}^{2} - n {}^{2}) \\ m {}^{4} - (mn) {}^{2} - (mn) {}^{2} - n {}^{4} \\ m {}^{4} - 2(mn) {}^{2} - n {}^{4}$

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