Question

1
x + 5
Х
x+4 by formula method​

Answer 1

Answer:

abcdefghijklmnopqrstuvwxyz

Answer 2

Step-by-step explanation:

(x+4)(x+5)

: using (x+a)×(x+b) = x2 + (a+b)x + ab

(x)2 + (4+5)x + 5×4

x2 + 9x + 20