Question

3. On simplifying (a + b) (2a - 3b + c) - (2a - 3b) c, we get:
(a) 2a? – 3b2 - ab + 4bc - ac
(b) 2a2 + 3b2 + ab + 4bc - ac
(c) 2a2- 3b2 - ab - 4bc - ac​

Answer 1

Answer:

(a+b) (2a-3b+c)-(2a-3b)c

a(2a-3b+c)+b(2a-3b+c)-2ac+3bc

2a²-3ab+ac+2ab-3b²+bc-2ac+3bc

2a²-ab-ac-3b²+4bc