Question

Simplify:
9√5 + 4√5 - √125​

Answer 1

Answer:

Step-by-step explanation:

$9\sqrt{5} + 4\sqrt{5} - \sqrt{125}$

= $9\sqrt{5} + 4\sqrt{5} - \sqrt{25 * 5}$

= $9\sqrt{5} + 4\sqrt{5} - 5\sqrt{5}$

= 8$\sqrt{5}$

   or

= $\sqrt{320}$

Answer 2

Step-by-step explanation:

9√5 +4√5-√125

9√5+4√5-√5×5×5

9√5+4√5-5√5

we can add or subtractas √5 is common for all

13√5-5√5

8√5

hope this may help you...