Question

is 25+4 radical 7 the correct answer to: (5=2 radical 7)squared

if not what is and how did you get it

Answer 1

when you square rt7 you get 7. the asnwer is 25+10rt7+28 when you foil it out

Answer 2

so it would be
\[53+20\sqrt{7}\]
correct??

Answer 3

53+10rt7

Answer 4

joojoo, there are two terms of \[10\sqrt{7}\] when you foil it out.

Answer 5

when you foil it it comes out as this\[25+10\sqrt{7^{2}}+28\]

Answer 6

the 10 radical 7 is supposed to be all squared not just the 7**

Answer 7

No it's suppose to be \[20\sqrt{7} \
not

10\sqrt{7}\]

So you have \[53+ 20\sqrt{7}\]

Answer 8

alright thats what i was thinkin after joojoo reminded me it was just the foil method thank you=)

Answer 9

your welcome