Answer :

Answer:

27.(21)⁹

Step-by-step explanation:

Given: 3¹² . 7⁹

⇒ 3⁹.3³.7⁹  = (3.7)⁹.3³

Because, (a.b)ˣ = aˣ . bˣ

Also, aᵇ . aˣ = aᵇ⁺ˣ

So, (3.7)⁹.3³  = 21⁹. 27.

Therefore the given expression is equivalent to  21⁹. 27.

Answer:

a,d,e

Step-by-step explanation:

did it in class

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