Question

write the following in expanded form (3a+4a+5a) whole bracket square​

Answer 1

Answer:

300+40+5 I think it will help you

Answer 2

Answer:

114 a^2

Step-by-step explanation:

=(3a)^2 + (4a)^2 +(5a)^2 + 2(3a×4a) + 2(4a×5a) + 2(5a×3a)

= 9a^2 + 16a^2 +25a^2 + 24a^2 + 40a^2 + 30a^2

= 144a^2