Answer
6
Work Step by Step
1. Simplify the square roots. $\sqrt 16$ = 4, $\sqrt 9$ = 3
Equation becomes 6 * 4 - 6 * 3
2. Multiply. 6 * 4 = 24, 6 * 3 = 18
Equation becomes 24 - 18
3. Add. 24 - 18 = 6
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