Answer:
[tex] \frac{2 \sqrt{5} x + \sqrt{2} x}{2} [/tex]
Step-by-step explanation:
[tex](3 \sqrt{20x} + \sqrt{18x} ) \div 6 \sqrt{x} [/tex]
[tex](3 \sqrt{4 \times 5x} + \sqrt{9 \times 2x} ) \div6 \sqrt{x} [/tex]
[tex](6 \sqrt{5x} + 3 \sqrt{2x}) \div 6 \sqrt{x} [/tex]
[tex] \frac{6 \sqrt{5x} + 3 \sqrt{2} }{6} \times \sqrt{x} [/tex]
[tex] \frac{2 \sqrt{5} x + \sqrt{2}x }{2} [/tex]
