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

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Answer 1 · 2018-07-03T01:27:59

$7$

Here's how I did it:

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

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

$=81/9-2$

$=9-2$

$=7$

Answer 2 · 2018-07-03T03:45:49

$7$

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!

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