Question

regroup and factorize
e. x(x + y-z) - xy
h. x(a-3) + y (3-a)​

Answer 1

Answer:

an= 3+2n

Now, put n=1,2,3,...

a1= 3+2(1) = 5

a2= 3+2(2) = 7

a3= 3+2(3) = 9

Thus, the terms of the AP are 5,7,9,....

Here, a = 5 and d = 2

S24= [25+(24 -1)2]

= 12[10+46]

= 12  56

= 672