summermackkenzie
summermackkenzie summermackkenzie
  • 09-11-2018
  • Mathematics
contestada

Simplify.

(2y)^3 • y^-1

Answer choices:

A.) 2y^2
B.) 8y^2
C.) 1/2y^2
D.) 1/8y^2

Respuesta :

MsLeo MsLeo
  • 09-11-2018
we have,
(2y)^3 × y^-1

Simplify the term (2y)^3

= 8y^3 × y^-1

Now, multiply the terms with the same base y by adding their exponents.

Note: Using exponent product rule x^y × x^z = x^(y+z)

= 8y^{3+(-1)}
= 8y^(3-1)
= 8y^(3-1)
= 8y^2
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good job