Question

using a suitable identity find the following products (5 + 2 x) (5 - 2 X )​

Answer 1

Answer:

Step-by-step explanation

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

Now,

(5+2x)(5-2x) = 5^2 - (2x)^2

= 25 - 4x^2