( 3a/2 - 2/3b )^2
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Step-by-step explanation:
( 3a/2 - 2/3b )^2
= ( 3a/2 - 2/3b ) X ( 3a/2 - 2/3b)
= [(3a/2)(3a/2)-(3a/2)(2/3b)-(2/3b)(3a/2)+(2/3b)(2/3b)]
=[(9a/4)-(a/b) -(a/b) +(4/9b)]
=[(18ab)/36b]-[2*36a/36b]+16/36b
= (18ab-72a+16)/36b
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