princesamelym
princesamelym princesamelym
  • 12-06-2019
  • Mathematics
contestada


Question 9 of 20 :
Select the best answer for the question.
9. –2x(–3x 2y)(2y) = ?

A. 12x3y2
B. –3xy2
C. 3xy2
D. –12x3y2

Respuesta :

kennedy1538
kennedy1538 kennedy1538
  • 12-06-2019
I think it’s d I’m not sure
Answer Link
carlosego
carlosego carlosego
  • 12-06-2019

For this case we must find the product of the following expression:

[tex]-2x * (- 3x^2y) * (2y) =[/tex]

We take into account that:

[tex]- * - = +[/tex]

To multiply powers of the same base, the same base is placed and the exponents are added:

[tex]6x^{1 + 2}y * 2y =\\6x ^ 3 * 2y ^ {1 + 1} =\\12x ^ 3y ^ 2[/tex]

ANswer:

[tex]12x ^ 3y ^ 2[/tex]

Option A

Answer Link

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