Question

Factorize by using suitable identities :

(a) 16m^5 -144m^3
(b)a^4 - 81
(c) 25a^3b - 36ab^3​

Answer 1

Step-by-step explanation:

1). 16m^5 - 144m^3

=> 16m³(m² - 9)

2). a^4 - 81 - Ans.

3). 25a^3b - 36ab^3

=> ab (25a^2 - 36b^2)

hope it will help you..

Answer 2

a) 16m^5 -144m^3

Step-by-step explanation:

=m(16m^4-144m^2)

=m[(4m) ^2-(12m) ^2]

{a^2-b^2= (a+b)(a-b)

=m(4m^2+12m)(4m^2-12m)

=m*4m*4m(m+3)(m-3)

=16m^3 ( m+3)(m-3)