Hi,

substituting values in

1. 3(n^2+5); if n=3  

3*(9+5) = 42



2. 20 over/n ;if n=4   

 20/4 = 5 

RELATED QUESTIONS

IF THE SQUARE OF A NUMBER IS ADDED TO THE SAME NUMBER INCREASED BY 4 THAT RESULT IS 60.... (answered by venugopalramana)

Please show me how to solve :  n + 3  over 5  =  n - 1 over 2
                            (answered by ikleyn,solver91311)

PLEASE HELP ME SOLVE:  h/2+h/5=1      and        n/n+1 +3 = 4/n+1.   Thank... (answered by checkley77)

Please help me to solve the following problems:

76)  3/2y-3/2y+4


82)... (answered by stanbon)

Dear Math teacher, please help me to understand how to solve these two math problems as i  (answered by robertb)

Evaluate:

1*1!+ 2*2!+3*3!+.....+n*n! where n is in N

I started with if 
n=1 then... (answered by venugopalramana)

Please help me,

solve the given problems involving factorials

Show that 
    ( n+... (answered by reviewermath)

Evaluate (m+n)^-3 if m=-1 and... (answered by jim_thompson5910)

Please help me solve this rational expression.

Three over n-1 = n over... (answered by stanbon)