## anonymous one year ago Evaluate

1. anonymous

$\sqrt{7x}\left( \sqrt{x} -7\sqrt{7}\right)$

2. anonymous

Show work

3. anonymous

@mathmate

4. anonymous

@Astrophysics please help me, im dying lol this is my last question and im done with this one

5. Astrophysics

Distribute the $\sqrt{7x}$ $\sqrt{7x} \times \sqrt{x}-\sqrt{7x} \times 7\sqrt{7}$

6. Astrophysics

$\sqrt{7x} \times \sqrt{x} \implies \sqrt{7}\sqrt{x}\sqrt{x} \implies \sqrt{7}x$ can you do the other?

7. Astrophysics

$\sqrt{7x} \times 7\sqrt{7} \implies (1 \times 7)(\sqrt{7x}\sqrt{7})$ you can simplify it more, I think you will be able to figure it out!

8. anonymous

$\sqrt{7x}*7*7*\sqrt{7}\rightarrow \sqrt{7}\sqrt{7}\sqrt{7}?$

9. anonymous

oh you already did it lol so what i did was obviously wrong haha

10. Astrophysics

$( 1 \times 7)(\sqrt{7x} \times \sqrt{7}) = 7\sqrt{x (7\times 7)} \implies 7\sqrt{49}\sqrt{x} \implies 7 \times 7 \sqrt{x}$ put it all together!

11. anonymous

$\sqrt{7x}-49$

12. anonymous

@Astrophysics

13. anonymous

Am i right?

14. anonymous

is my answer correct @mathmate ?

15. mathmate

If the question is correct, then the answer is not! :(

16. Astrophysics