Perform the indicated operations.
(a) (x2 − 3x + 2) − (x − 4x2) + 3x(2x + 1)
(b) (6r − 5)2
(c) (u + 2)(3u2 − u + 4)
(d) (4x + 5)(4x − 5)
(e) [(5p − 1) + 4]2
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