Question

Question- use suitable identity to get the product
(5a+2)(5a-2)

Answer 1

Answer:

it's 25a²-4 according to the property a²-b²= (a+b)(a-b)

Answer 2

Answer:

Step-by-step explanation:

question: (5a+2)(5a-2)

using the identity (a + b) (a - b)= $a^{2}$-$b^{2}$   [where a= 5a and b= 2 in the given equation]

=> $(5a)^{2}$- $2^{2}$

=> $25a^{2}$ - 4 is the answer