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12.12.2020 •
Mathematics
Let's solve the exponential equation
3ex = 45.
(a) First, we isolate
ex
to get the equivalent equation ex=
(b) Next, we take ln of each side to get the equivalent equation .
(c) Now we use a calculator to find
x ≈ .
(Round your answer to three decimal places.)
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Ответ:
x^2+7x-2x-14
x(x+7) - 2(x+7)
(x-2)(x+7)