(7+√7)(7+√7)
2007-04-22 16:06:18 · 7 answers · asked by LS2 1 in Science & Mathematics ➔ Mathematics
7 + 2.65 = 9.65 x 2 = 19.3
2007-04-22 16:09:56 · answer #1 · answered by Sweet n Sour 7 · 0⤊ 2⤋
49 + 14* (7)^(1/2) + 7 is the answer.
56 + 14 * (7^(1/2)) is about 93.04051835490426826702262055095
2007-04-22 23:22:39 · answer #2 · answered by Jack 7 · 0⤊ 0⤋
If you don't have a calculator with the Square Root button, you can always use excel. Just right in the formula bar using excel language, if you don't know it use the help feature. I typed your question in like this:
=(7+(SQRT(7)))*(7+(SQRT(7))). Then when you type enter it works it out just like a calculator. It's a verry handy feature of Excel, and a good one to get familiar with. It comes up with the right answer, which has already been said.
2007-04-22 23:34:24 · answer #3 · answered by Hosebeast-ess to be 4 · 0⤊ 0⤋
If you multiply it out, you get 7*7 + 7*sqrt(7) + 7*sqrt(7) + sqrt(7) * sqrt(7). So that's 56 + 14sqrt(7).
2007-04-22 23:12:23 · answer #4 · answered by Amy F 5 · 0⤊ 0⤋
(7+sqr7)(7+sqr7)
=(7+sqr7)^2
=7^2+(sqr7)^2+2*7*sqr7
=49+7+14sqr7
=56+14sqr7
=14(4+sqr7)
P.S sqr means square root
2007-04-22 23:16:12 · answer #5 · answered by chaand 1 · 0⤊ 0⤋
Do your own homework. How is asking on here going to help you. What are you going to do when you have to be tested on a problem like that. Why did you wait until the LAST minute to do your homework.?
2007-04-22 23:09:14 · answer #6 · answered by Anonymous · 1⤊ 1⤋
get a calculator
2007-04-22 23:08:43 · answer #7 · answered by zsendukas 1 · 1⤊ 1⤋