4. Write the following expression as a single logarithm. In x² +2 Inz - 2 Inx 5. Use log rules to solve the following equations for y. 2 lnx-3lny = 1 6. Check that the following function is invertible over the specified domain using a plot and the horizontal line test, then find the formula for the inverse. f(x) = 2 (x + 1)2 D: x > -1

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