Ask
your own question, for FREE!
Mathematics
9 Online
OpenStudy (anonymous):
Evaluate
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (anonymous):
\[\sqrt{7x}\left( \sqrt{x} -7\sqrt{7}\right)\]
OpenStudy (anonymous):
Show work
OpenStudy (anonymous):
@mathmate
OpenStudy (anonymous):
@Astrophysics please help me, im dying lol this is my last question and im done with this one
OpenStudy (astrophysics):
Distribute the \[\sqrt{7x}\]
\[\sqrt{7x} \times \sqrt{x}-\sqrt{7x} \times 7\sqrt{7}\]
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (astrophysics):
\[\sqrt{7x} \times \sqrt{x} \implies \sqrt{7}\sqrt{x}\sqrt{x} \implies \sqrt{7}x\] can you do the other?
OpenStudy (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!
OpenStudy (anonymous):
\[\sqrt{7x}*7*7*\sqrt{7}\rightarrow \sqrt{7}\sqrt{7}\sqrt{7}?\]
OpenStudy (anonymous):
oh you already did it lol so what i did was obviously wrong haha
OpenStudy (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!
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (anonymous):
\[\sqrt{7x}-49\]
OpenStudy (anonymous):
@Astrophysics
OpenStudy (anonymous):
Am i right?
OpenStudy (anonymous):
is my answer correct @mathmate ?
OpenStudy (mathmate):
If the question is correct, then the answer is not! :(
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (astrophysics):
No, that's not right compare your answer with the first part
Can't find your answer?
Make a FREE account and ask your own questions, OR help others and earn volunteer hours!
Join our real-time social learning platform and learn together with your friends!