Question

simplyfy by rationalizing the denominator 6-4root 2 / 6+4root2

Answer 1

=(6-4√2)(6+4√2)÷(6+4√2)^2
=(6)^2-(4√2)^2÷[36+32+48√2]
=36-32÷[68+2√1152]
=4÷[√36+√32]^2
={2÷[6+2√8] }^2
={2÷[√4+√2]^2}^2