How do you simplify #sqrt 7 + 8 sqrt 63#?

Question

↳Redirected from "What is the concentration of pure water at #298*K# given a #"density"# of #1.00*g*mL^-1#?"

2089 views around the world

You can reuse this answer
Creative Commons License

Answer 1 · 2016-03-09T16:06:27

Same thing just written differently so you can see a very slightly different approaches.

#25sqrt(7)#

Given:#" "sqrt(7) +8sqrt(63)#

#3xx21=63#
#3xx7=21#
#3^2xx7=63#

#sqrt(7)+8sqrt(3^2xx7)#

#sqrt(7)+24sqrt(7)#

#sqrt(7)(1+24)#

#25sqrt(7)#