Question: Make the given changes in the indicated examples of this section, and then solve the resulting problems. In Example 5(b), change the exponent 3 to

Make the given changes in the indicated examples of this section, and then solve the resulting problems.

In Example 5(b), change the exponent 3 to 2.

Data from Example 5(b)

(2a - b) = (2a - b)(2a - b)(2a - b) the

(2a - b) = (2a - b)(2a - b)(2a - b) the exponent 3 indicates three (2a - b) (4a - 2ab - 2ab + b) factors = (2a - b) (4a 4ab + b) = 8a = 8a3 = - 8ab2ab-4ab + 4ab - b 12ab6ab - b

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