How do you use PEMDAS to simplify (9-7)^3 - (4+3)?

Jan 18, 2016

The answer to that equation is 1

Explanation:

PEMDAS means answering first what's inside the parenthesis then use the exponent then proceed multiplication, division, addition and subtraction accordingly.

For this,
${\left(9 - 7\right)}^{3} - \left(4 + 3\right)$

Following PEMDAS:

${\left(2\right)}^{3} - \left(7\right)$
$\left(8\right) - \left(7\right)$
$= 1$