Question

(a+b-c) (ab-bc-ca) +abc: factorise​

Answer 1

Step-by-step explanation:

(a+b-c)(ab-bc-ca)+abc

={a+b+(-c)} {a.b + b.(-c) + (-c).a} -a.b.(-c)

=(a+b){b+(-c)} {(-c)+a}

=(a+b)(b-c)(a-c)