2007-05-07 10:26:57 · 8 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
(√2 + 7)^2
=(√2 + 7)(√2 + 7)
= 2 + 7√2 + 7√2 + 49
= 14√2 + 51
2007-05-07 10:31:57 · answer #1 · answered by Bleh7777 2 · 0⤊ 0⤋
(â2 + 7).(â2 + 7)
= 2 + 14.â2 + 49
= 51 + 14.â2
2007-05-07 17:54:57 · answer #2 · answered by Como 7 · 0⤊ 0⤋
The only thing you can do is to expand
(sqrt(2) + 7)^2 = (sqrt(2))^2 + 2sqrt(2)7 + 7^2 =
2+ 14 sqrt(2) + 49 = 51 + 14sqrt(2)
2007-05-07 17:34:04 · answer #3 · answered by vahucel 6 · 0⤊ 0⤋
2 + 14radical 2 + 49
2007-05-07 17:35:49 · answer #4 · answered by Anonymous · 0⤊ 0⤋
(14â2)+51
2007-05-07 17:32:02 · answer #5 · answered by blueorion3 2 · 0⤊ 0⤋
O.k.... its 9!!!
the square root of 2=7 is... 3 then... the 3^2 is = 9!!!
Woot Woot!!!
2007-05-07 17:35:19 · answer #6 · answered by Adrienne<3 1 · 0⤊ 0⤋
2+14â2+49
i think
i'm pretty sure
=)
2007-05-07 17:32:30 · answer #7 · answered by Pamela Anderson Kennedy 1 · 0⤊ 0⤋
Just plug it in a calculator = 70.799
2007-05-07 17:32:51 · answer #8 · answered by Ivelina 1 · 0⤊ 0⤋