Answer:

1. (5d + 4)³=5d+64

2. 3 (5d) (4) 2=240d

Step-by-step explanation:

(5d + 4)3=5d+64

1.Remove unnecessary parentheses

(5d + 4)³»»5d+4³

2.Evaluate the power

5d+4³=5d+64

3 (5d) (4)²=240d

1.Remove unnecessary parentheses

3 (5d) (4) 2»»3 x 5d x 4²

2.Evaluate the power

3 x 5d x 4²»»3 x 5d x 16

3.Calculate the product

3 x 5d x 16=240d

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