(2 sqrt 3 + sqrt5 ) (2 sqrt 3 - sqrt 5)
- Thread starter ginny1029
- Start date
ginny1029 said:help lol
if it were just the sqrt's i would square them but I dont know what to do with the first 2's --- square those too
\(\displaystyle (2\sqrt{3} )^2 \, = \, 2^2 \cdot (\sqrt{3})^2\)
ginny1029 said:ok so how would i write it
(2 sqrt 3)^2 times (sqrt 5)^2 <<< Why is that???
(4 x 3) - (5)
12-5
7 <<< Correct answer
??