Question

(ii) 2t +9 square of
​

Answer 1

Answer:-

(2t + 9 )²

As we know that ( a + b )² :-

a² + b² + 2ab

So,

=( 2t )² + ( 9 )² + 2 ( 2t ) ( 9 )

= 4t² + 81 + 36t

= 4t² + 36t + 81.

Hence, the answer is 4t²+36t+81.

PLEASE MARK ME AS A BRAINLIEST AND FOLLOW ME PLEASE

Answer 2

(2t+9)²

(2t)²+(9)²+2(2t)(9)

4t²+81+36t²

plz follow