(3/2m+2/3n)(3/2m-2/3n)
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Answered by
76
First checking the question, it's in the form of (a+b)* (a-b).
(a+b)(a-b)=a²-b²
So (3/2m+2/3n)(3/2m-2/3n)
= (3/2)²m²-(2/3)²n²
=9/4m²-4/9n²
(a+b)(a-b)=a²-b²
So (3/2m+2/3n)(3/2m-2/3n)
= (3/2)²m²-(2/3)²n²
=9/4m²-4/9n²
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