13^2 -(4)(-3)(-4) all under a radical sign. do I combine the 4 the -3 and the -4 to get 48 and then subtract from 169, and get 121 under a radical sign equaling 11

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- April 23rd 2012, 08:41 AMmodecasecone more radical question. I think I did this wrong also
13^2 -(4)(-3)(-4) all under a radical sign. do I combine the 4 the -3 and the -4 to get 48 and then subtract from 169, and get 121 under a radical sign equaling 11

- April 23rd 2012, 09:46 AMemakarovRe: one more radical question. I think I did this wrong also
Yes.