Answer:
B. 15g^2 + 35g^3 - 45g
Explanation:
5g(3g + 7g^2 - 9)
5 x 3 = 15 g x g = g^2; 15g^2
5 x 7 = 35 g x g^2 = g^3; 35g^3
5g x -9 = -45g
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