Question

when i have the radical 1/√3+4 (one over the square root of three plus four)...i know i would have to multiply both parts by the denominator and switch the signs but when have √3+4 times √3-4...is my outcome for the new denominator 3+4 to equal 7 orrrrrr 3-4 to equal -1?????? i know this seems long but its really simple

Answer 1

here ill draw an example

Answer 2

sorry this really sucks