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a) Simplify the following expression. Write the answer with only positive exponents. -2 (4x2y 3x1 (3) b) Solve the following equations: log x 2-log

a) Simplify the following expression. Write the answer with only positive exponents. -2 (4x2y 3x1 (3) b) Solve the following equations: log x 2-log (x -21) (3) c) Use the laws of logarithms to expand the following expression: log w u (2)

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