Question

ok, says to factor completely
x^2+14r+49
which would be correct?
(r+7)(r+7) or (r+7)^2

Answer 1

(r+7)^2

Answer 2

they are the same, but the second one better

Answer 3

ok, thanks!

Answer 4

for the same reason that when you factor
\[25\] you write
\[25=5^2\] rather than
\[25=5\times 5\] same thing of course, but we like exponents