Question

27 • a • a • a as an expression?

Answer 1

the expression is 27a^3   or (3a)^3

Answer 2

For this case we have the following expression:

$27 * a * a * a$

By definition, by ownership of the power:

In the multiplication, if we have the same base the exponents are added, for example:

$A (x * x * x) = Ax^{(1 + 1 + 1)}= Ax ^ 3$

Rewriting the given expression we have:

$(3 * 3 * 3) (a * a * a) =$

$(3^ {(1 + 1 + 1)})*(a^ {(1 + 1 + 1)}) =$

$3 ^ 3 * a ^ 3 =$

$(3a) ^ 3$

Answer:

Rewriting the given expression we have:

$(3a) ^ 3$