Would the value of
{2+ [(15 – 3) – 61} = 2
change if the braces were
removed? Explain.

Would the value be the same if you took away the parenthesis

the answer is b.

64

step-by-step explanation:

c=2πr=2·π·8≈64

answers

\3. yes the presentation (i.e. odd numbers being written as differences of two squares) is possible for all odd natural number however the presentation may not be unique. for example,  57=112−82=292−28257=112−82=292−282.

\4. 2 can't be written as a difference of two squares because 4-1=3 and 1-1=0 and the difference of squares grows to integers larger that 3.

can i get some in proving questions 1 and 2?