Question

Chapter 5:Indices and Logarithms

Answer 1

\[Given~\log _{3}x=7~and~\log _{3}y=3,\]find the values of:\[\log _{3}27x^2y\]

Answer 2

My answer is 19 but the answer in the book say it's 20

Answer 3

@jim_thompson5910

Answer 4

@iambatman

Answer 5

first use rules to expand

Answer 6

multiplication .---> addition
division ----- > subtraction

Answer 7

\[\log _{3}3^2+\log _{3}x^2+\log _{3}y\]

Answer 8

\[\log_3 27x^2y = \log_3 27 + 2\log_3 x + \log_3 y = 3+2(7) +3 = 20\]