# math,correction plz

posted by
**jas20**
.

can someone correct my math...thanks...

Perform the indicated multiplication. Then simplify each radical expression.

Problem#4

radical(13) times radical (5)

My answer: radical (15)

Problem #28

radical (7) (2radical(3)+3radical(7))

MY answer: 2radical(21) + 21

No on first one. sqrt(5*13).

yes on second.