(a+3)(2a+3)
expand and simplify (x+4)(x-4)
3k=+3=33-2k
k=...
2(3+1)=23+3
820862
3040779
2757747
1618535
6081558
5515494
2395%1877.51
2x(3x/2)
x[n]=(1/3)^n
h[n]=5*(-1/2)^n
Convolution X[n] and h[n]
3x - 12 = 5x - 2
x6 - 132x5 +7260x4 - 212960x3 + 3513840x2 - 30921792x + 113379904 = 0
find the value of x
