Question

Can someone show me how 2 simplify (2 √5 +3 √7)² step by step

Answer 1

You'll want to FOIL this out. But first, rewrite it like this:
\[(2\sqrt{5} + 3\sqrt{7})(2\sqrt{5} + 3\sqrt{7})\]Now, you can FOIL this out as you normally would.

Answer 2

Apply (a + b)^2 formula to it

Answer 3

so it would 2 sqrt 18 sqrt 7?

Answer 4

It would be 103 + 12underroot 35

Answer 5

do you mind explaining I still cant figure out how you got that answer...

Answer 6

The formula goes a^2 + 2ab + b^2
Hence place the first term as a
Second term as b
Plug the value get the answer. Simple

Answer 7

2sr5 + 3sr7 ^2
=2sr5(2sr5) + 2sr5(3sr7) + 3sr7(3sr7)
=4(5) + 6sr35 + 9(7)
=83 + 6 sr35

Answer 8

83+6 sr 35 is the final answer or should I complete it ?

Answer 9

Great u almost got it but u forgot to multiply the middle term by 2

Answer 10

My bad its 83 ur right

Answer 11

The final is 83 +12sr35

Answer 12

thank you all for the help god bless :)