Question

Please solve this: (3a-7b-c)²

Answer 1

Answer:

Solution =》(3a-7b-c)²

STEP BY STEP EXPLANATION;

Using the identity,(a+b+c)² = a²+b²+c²+2ab+2bc+2acNow, put the value on the formula and execute...⇒(3a-7b-c)²= (3a)²+(-7b)²+(-c)²+2.3a(-7b)+2.(-7b)(-c)+2.3b.(-c)⇒(3a-7b-c)² = 9a²+49b²+c²-42ab+14bc-6ac

PLS MARK ME AS BRAINLIEST

Answer 2

hope this will help you