Question

Expand each of the following using suitable identities

a. (3a-6b-2c)^2

b. (3a-4b)^3​

Answer 1

Answer:

1.formula used for 1st one = (x+y+z)^2= x^2+y^2+z^2+2xy+2yz+2zx

2.formula used for 2nd one = (x-y)^3= x^3-3x^2y+3xy2-y^3

hope this will help u.......