D. Perform the indicated operations. Simplify your answer.
16. (2a)(3b) =
17.3(4ab) =
18. (x+2)(x+5) =
19.5(x² + 2x - 3) =
20. 4x³ +6x² +10x/ 2x =
16. (2a)(3b) =
17.3(4ab) =
18. (x+2)(x+5) =
19.5(x² + 2x - 3) =
20. 4x³ +6x² +10x/ 2x =
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Answer:
16. 6ab
17. 12ab
18. x²+7x+10
19. 5x²+10x-15
20. 4x³+6x²+5