# Simplify 9 square root of 4+4 square root of 9

94+49
Simplify each term.
Rewrite 4 as 22.
922+49
Pull terms out from under the radical, assuming positive real numbers.
9⋅2+49
Multiply 9 by 2.
18+49
Rewrite 9 as 32.
18+432
Pull terms out from under the radical, assuming positive real numbers.
18+4⋅3
Multiply 4 by 3.
18+12
18+12