Question

factorize : (3a - 7b - c)sqare upar​

Answer 1

Answer:

49ab+14bc-6ac

Step-by-step explanation:

(3a - 7b - c)^2

9a2+49b2+c2

49ab+14bc-6ac

we know that, (a+b+c)^2=a2+b2+c2+2ab+2bc+2ca