Question

(a+b-c+d) tell me the anser

Answer 1

QUESTION :-

(a+b-c+d)

ANSWER :-

to multiply (a+b) (c+d)

let us first consider (a+b) as single number

(a+b) (c+d)

(a+b) ×c+(a+b)×d

now one each of the two i.e. (a+b)×c and (a+b)×d