Question

factorisation of polynomial a2+2ab+b2-9c2​

Answer 1

Answer:(a +b + 3c) (a+b-3c)

Step-by-step explanation:

a2 + 2ab + b2 - 9c2

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

Using formula of a2 - b2:

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

Answer 2

Answer:(a +b + 3c) (a+b-3c)

Step-by-step explanation:

a2 + 2ab + b2 - 9c2

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

Using formula of a2 - b2:

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