help!

[D_Boy]

Also...at Gnac...that link is horrible. That doesn't help at all. Here is how it works in detail. √8=√(4x2)=√4 x √2. Now √4=2...therefore √8=2√2. Same as √32=√(4x8)=√(4x4x2)=√4 x √4 x √2=2x2x√2=4√2. So...7√32 = 7 x 4√2 = 28√2