MTH1120 Module 6 Worked-Out Homework.docx

MTH1120 Module 6 Worked-Out Homework.docx - Module 6...

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Module 6 Worked-Out Homework Section 12.4 Exercise Set Solve each exponential equation by expressing each side as a power of the same base and then equating exponents. 1. 2. 3 x = 81 Write each side as power of same base. 3 x = 3 4 Set exponents to equal each other. x = 4 The solution set is {4}. 2. 8. 5 3 x 1 = 125 5 3 x 1 = 5 3 3 x 1 = 3 3 x = 3 + 1 3 x = 4 Divide sides by 3. x
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