This what i put is it correct? (they are different problems)
81m^2+4 / n^2+75
2006-11-21 00:37:31 · 3 answers · asked by ME 3 in Science & Mathematics ➔ Mathematics
I just put them together so I didnt have to post 2 questions but they are different problems. And the answer is in the bottom. Thanks!
2006-11-21 00:41:58 · update #1
(9m+2)^2
=(9m)^2 + 2(9m)*2 + 2^2
= 81m^2 + 36m + 4
using the formula (a+b)^2 = a^2+2ab+b^2
if you mean n+15^2 = n+ 225
if you mean (n+15)^2
= n^2 + 2n*15+ 15^2
= n^2+ 30n + 225
2006-11-21 00:40:06 · answer #1 · answered by Mein Hoon Na 7 · 0⤊ 0⤋
Wrong. (a + b)^2 is not equal to a^2 + b^2. And these are not products. They are expansions. Still wondering how did you derive your second answer. Math KP has the correct answer.
2006-11-21 08:58:30 · answer #2 · answered by James S 3 · 0⤊ 0⤋
its a little unclear,
what do u want to ask
2006-11-21 08:39:48 · answer #3 · answered by Dupinder jeet kaur k 2 · 0⤊ 0⤋