Question

write down the square of 2t+9​

Answer 1

Answer:

4t^2 +81 +36t........

Answer 2

Answer:

(2t+9) ^2

Using (a+b)^2 formula we get :

= (2t)^2 + 2×2t×9+ (9)^2

=4t^2 + 36t +81

Which is the answer pls mark as brainliest