Question

Solve using identities :
1. (x + c) ( x + d)​

Answer 1

Answer:

$(x + c)(x - c) = {x}^{2} - {c}^{2}$

Answer 2

(x+c)(x+d)

x²+xd+xc+cd

x²+x(d+c)+cd

x²+(c+d)+cd