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Find the exact solutions, in their simplest form, to the equations : a) 2ln(2x + 1)-4=0 b)7^(x)e^(4x)=e^5

a) 2ln(2x + 1)-4=0

-> ln(2x + 1)-2=0

-> ln(2x + 1)=2

-> (2x + 1)=e²

-> 2x = e²-1

-> x = (e²-1)/2

b) 7^x

Answered by Elizabeth L. • Maths tutor

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11164 Views

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Answered by Dorota D. • Biology tutor

5659 Views

What are the characteristics of Gothic Style in architecture?

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2699 Views

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Answered by Sam P. • English Literature tutor

3825 Views