Question

(9x - 5t) (9x + 3t)​

Answer 1

Answer:

81x²+27xt-45xt-15t²

Step-by-step explanation:

81x² -18xt - 15t²

3(27x² - 6xt - 5t²)

now solve this qurdatic equation

Answer 2

The value of (9x - 5t) (9x + 3t)​ is $81 x^{2}-18 x t-15 t^{2}$

Solution:

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

We have to expand the product terms.

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

$= 9x \times (9x + 3t) - 5t \times (9x + 3t)= 9x \times 9x + 9x \times 3t - 5t \times 9x - 5t \times 3t$

$=(9 x)^{2}+27 x t-45 x t-15 t^{2}$

$=81 x^{2}-18 x t-15 t^{2}$

Hence the value of (9x - 5t) (9x + 3t)​ is $81 x^{2}-18 x t-15 t^{2}$