So we have [tex] \frac{32}{ 7^{2} - 3^{2} } [/tex]
Follow PEMDAS: Parentheses, Exponents, Multiplication, Division, Addition, and Subtraction.
So parentheses goes first. However, we have no parentheses so we must simplify the exponents first.
[tex] \frac{32}{49 - 9} [/tex]
Now we simplify the denominator,
[tex] \frac{32}{40} [/tex]
We can simplify this fraction by dividing 8 to the the numerator and denominator.
32 ÷ 8 = 4
40 ÷ 8 = 5
Our new fraction is 4/5 which, in decimal form, is 0.8
Hope this helps! :)
