Interventional radiology. Interventional radiology (IR), sometimes known as vascular and interventional radiology (VIR), is a medical sub-specialty which provides minimally invasive image-guided diagnosis and treatment of disease.
Report Abuse. 3*(2)^(1/3) In words, 3 times the third root of 2. Divide 54 by 27 (which is 3 cubed), giving 2 inside the radical and 3 outside.... ... Â· 5 years ago.*(2)^(1/3) In words, 3 times the third root of 2. Divide 54 by 27 (which is 3 cubed), giving 2 inside the radical and 3 outside. ... ... Â· 5 years ago.
64a^6 - 343b^12 is a difference of cubes. If you take cube root for 64a^6, it will give you 4a^2 and if you take cube root of -343b^12, it will give you -7b^4. This can be factor as (4a^2 - 7b^4) (16a^4 + 28a^2b^4 + 49b^8). 64y^3 + 27y^6 is a sum of cubes. It will finally factor as (y^3) (4 + 3y) (4 - 3y)^2.