What does 555^2+2(555)(445)+445^2=?
495950
10000
495297
1000000
9986
2007-09-29 15:38:06 · 7 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
look, recall that (a+b)^2 = a^2 + 2ab + b^2. The one you have there is somehow similar. If you let a=555 and b=445, then (a+b)^2 = (555+445)^2 = 555^2+2(555)(445)+445^2. Thus, it is also similar with (555+445)^2 or 1000^2 = 1000000.
i hope its clear enough! have a good day:D!
2007-09-29 15:44:09 · answer #1 · answered by mikael 3 · 0⤊ 0⤋
555^2+2(555)(445)+445^2
=(555+445)^2, since a^2+2ab+b^2=(a+b)^2
=(1000)^2
=1000000
2007-09-29 22:45:51 · answer #2 · answered by vcs7578 5 · 0⤊ 0⤋
494450
555^2=277.5
2(555)(445)= 493950
445^2= 222.5
222.5 + 277.5 + 493950 = 494450
2007-09-29 22:49:43 · answer #3 · answered by enn 6 · 0⤊ 1⤋
1000000000...PEMDAS
PArenthesis
exponents
multiply
divide
add
subtract
P (555)(445)= 246975 555^2+ 2(246975)+445^2
E555*555=308025 445*445=198025
308025+2(246975)+198025
M 2x246975=493950 308025+493950+198025
D n/a
A 308025+493950+198025= 1000000000
S n/a
2007-09-29 23:06:59 · answer #4 · answered by happylilsmigger02 3 · 0⤊ 1⤋
1000000
2007-09-29 22:46:42 · answer #5 · answered by SicklesPickles 1 · 0⤊ 1⤋
1000000
2007-09-29 22:46:10 · answer #6 · answered by matmat 2 · 0⤊ 1⤋
any calculator would tell you
1 million
2007-09-29 22:44:42 · answer #7 · answered by scott 1 · 0⤊ 1⤋