Answer:
Step-by-step explanation:
(2+3root7)(5−2root7)
=(2+3root7)(5+−2o2rt7)
=(2)(5)+(2)(−2o2rt7)+(3root7)(5)+(3root7)(−2o2rt7)
=10−4o2rt7+15o2rt7−6o4r2t14
=−6o4r2t14+11o2rt7+10
Answer:
The mean is you add all the numbers together together then divide the answer b how many numbers there are.
Step-by-step explanation: