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

if not what is and how did you get it

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

anonymous · Answer

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

anonymous · Answer

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

anonymous · Answer

53+10rt7

anonymous · Answer

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

anonymous · Answer

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

anonymous · Answer

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

anonymous · Answer

No it's suppose to be $$20\sqrt{7} \
not

10\sqrt{7}$$

So you have $$53+ 20\sqrt{7}$$

anonymous · Answer

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

anonymous · Answer

your welcome