Question

write down the square of 2t + 9​

Answer 1

Answer:

= 4t^2 + 36t + 81

Step-by-step explanation:

( 2t + 9 ) ^2

as we know ,

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

= ( 2t) ^ 2 + 2 x 2t x 9 + ( 9) ^2

= 4t^2 + 36t + 81 ( answer )

hope this will helps u......be happy......