(1.5a- 2/3b)²

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(1.5a-2/3b)²(1.5a-2/3b)²(1.5a-2/3b)²(1.5a-2/3b)²=(3/2a-2/3b)²=9/4a²+4/

(1.5a- 2/3b)²
(1.5a- 2/3b)²

(1.5a- 2/3b)²
(1.5a- 2/3b)²
=(3/2a- 2/3b)²
=9/4a²+4/9b²-2