Questiona) $9 \sqrt{3}-4 \sqrt{3}+\sqrt{5}+2 \sqrt{5}$ b) $10 \sqrt{2}+4 \sqrt{7}-6 \sqrt{2}$

Studdy Solution
Identify and combine like terms in expression (b): $10 \sqrt{2} + 4 \sqrt{7} - 6 \sqrt{2}$.
- Combine the terms with $\sqrt{2}$: $10 \sqrt{2} - 6 \sqrt{2} = (10 - 6) \sqrt{2} = 4 \sqrt{2}$. - The term with $\sqrt{7}$ remains unchanged: $4 \sqrt{7}$.
The simplified expression is:
$$4 \sqrt{2} + 4 \sqrt{7}$$