Started this today and I'm okay with simplifying radicals that don't include variables, but I'm having trouble solving ones with variables, like [tex]\sqrt{49y^{12}[/tex]. I cant decide if I have to root it out like this [tex]\sqrt{7y^{6}[/tex] times [tex]\sqrt{7y^{6}[/tex] or just root it out the way it is since it is in itself a perfect square. Please help, I didn't get very clear instructions in class.