What is #81 / (9^2 - 72) - (5-3)#?

2 Answers
Jul 3, 2018

Answer:

#7#

Here's how I did it:

Explanation:

#81/(9^2-72)-(5-3)#

#=81/(81-72)-2#

#=81/9-2#

#=9-2#

#=7#

Jul 3, 2018

Answer:

#7#

Explanation:

The denominator simplifies to #81-72#, and we're now left with

#81/9-(5-3)#

This further simplifies to

#9-(5-3)#

#9-2=7#

Hope this helps!