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4. What is the product of (2a - 3) and (4a2 + 5a - 7)?
A. 8a? + 2a2+ 29a + 21
C. 8a3 + 22 a2 + 29a - 21
B. 8a3 - 2a2 -29a +21
D. 8a3 - 22a2 - 29a - 21
in + 4 in simplest form?​