## anonymous one year ago simplify √x^36 y^64

1. anonymous

does it say what x and y stand for

2. anonymous

no

3. anonymous

4. anonymous

a. x^18 y^32 b. x^18 y^4 c.x^6 y^32 d. x^6 y^4

5. MrNood

you can look at the equation in a simpler form to start with: $\sqrt{a \times b} = \sqrt{a} \times \sqrt{b}$ so your equation can be written as $\sqrt{x ^{36}} \times \sqrt{y ^{64}}$

6. MrNood

I assume you are studying indices do you know how to write squareroot as an index?

7. anonymous

no

8. MrNood

$\sqrt{x} = x ^{\frac{ 1 }{ 2}}$ do you recognise that?

9. anonymous

yes

10. MrNood

ok so look at my post above you have 2 sqareroots - but you can write them like I did above with an index like this: $(x ^{36})^{\frac{ 1 }{ 2 }} \times (y ^{64})^{\frac{ 1 }{ 2}}$ NOw you need to use what you know about indices to simplify that....

11. anonymous

ok

12. MrNood

$(x ^{a})^{b} =x ^{a \times b}$ use that on the 2 terms above (This is the last stage - you need to do it yourself)

13. anonymous

i still dont get it

14. MrNood

Are you studying indices ?