(3b - 2)^2
(3b - 2)(3b - 2)
9b^2 - 12b + 4
(3b-2)²
= (3b-2) (3b-2)
=9b²-6b-6b+4
=9b²-12b+4
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(3b - 2)^2
(3b - 2)(3b - 2)
9b^2 - 12b + 4
(3b-2)²
= (3b-2) (3b-2)
=9b²-6b-6b+4
=9b²-12b+4