Ask your own question, for FREE!
Mathematics 21 Online
OpenStudy (anonymous):

If x^2 - y^2 = 77 andd x + y = 11, what is the value of x?

OpenStudy (mathmath333):

use the fact that \(\large \color{black}{x^2-y^2=(x+y)(x-y)\hspace{.33em}\\~\\ }\)

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!
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!