Logarithm Equation

• I hate logs. Nobody likes them.

• 3 frogs sat on 4 logs and floated away from 81 dogs

Evaluate.
log₃81

• 4
• ¹/₄
• -4
• -¹/₄

Write log_b(xy) as two logs

• log_bx+log_by
• log_bx-log_by
• log_bx*log_by
• log_bx/log_by

Write log_b(x/y) as two logs

• log_bx-log_by
• log_bx+log_by
• log_bx*log_by
• log_bx/log_by

Solve the equation for x.

• x = 27
• x = 9
• x = 3
• x = 1

log₅(4x-7)=log₅(x+5)

• 3
• 12
• 4
• 7