How would I write

1-2log(7)x as a single logarithm

Choices:
log(7) x^2/7
log(7) 7x^2
log(7) 7/x^2
log (7) x^2

Thank you

2 answers

1-2log(7)x
= log77 - log7x^2
= log7(7/x^2)
Thank you