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Examples Solving Exponential Equations
Solve by converting into log form. Round off to the nearest thousandth. 1) x = 21 2) e-3x = 10 log = 4x log e 10 = -3x log (21) log (3) ln 10 = -3x = -3x = 4x = -3x = 4x = x .693 = x
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Examples Solving Exponential Equations
Solve by converting into log form. Round off to the nearest thousandth. 3) 2 (3)x = 14 4) -2/3 (e)5x = -10 -8 +6 (-3/2) -2/3 (e)5x = -18 (-3/2) 2 (3)x+2 = 20 e5x = 27 3x+2 = 10 log = x + 2 log e 27 = 5x log (10) log (3) ln 27 = 5x = x + 2 = 5x = x + 2 -2 .659 = x .096 = x
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