Question

Expand (9x-5t) (9x+5t)​

Answer 1

Answer:

$(9x - 5t)(9x + 5t) \\ \\ = ( {9x})^{2} - ({5t})^{2} = 81 {x}^{2} - 25 {t}^{2}$

Step-by-step explanation:

USE THE IDENTITY;

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

Answer 2

Answer

Given, product of (9x – 5t) and (9x + 3t).

We have to expand the product terms.

Now, (9x - 5t) (9x + 3t)

Hence the value of (9x - 5t) (9x + 3t)​ is  

Step-by-step explanation:

hope it will help you

please mark my answer as brainlist