## alli14344 For questions 3–10, simplify the radical expression. 3. sqrt of 20 4. sqrt of 72x^2 5. sqrt of 250h^4k^5 6. sqrt of 14q ,2sqrt of 4q 7. sqrt of 63x^15y^9/7xy^11 8. sqrt of 3 + 4sqrt of 3 9. 2sqrt of 6 + 3sqrt of 96 10. ( 8+sqrt11)( 8-sqrt11) 10 months ago 10 months ago

1. JAMG

$\sqrt{20} = \sqrt{4*5} = 2\sqrt{5}$

2. alli14344

thankyou!!!

3. JAMG

you are trying to find perfect squares so you can take the square root of those and simplifying

4. alli14344

:) thanks

5. JAMG

next one is the same, $\sqrt{72x^2} = \sqrt{9*8x^2} = 3x \sqrt{8}$

6. JAMG

on this one you have an x^2 but that still a square

7. JAMG

$\sqrt{250h^4k^5} = \sqrt{25*10h^4k^4k}= 5h^2k^2\sqrt{10k}$

8. JAMG

ill let you figure out the next ones :)

9. alli14344

ok Thankyou :)