chaseclay4540 chaseclay4540
  • 15-09-2020
  • Mathematics
contestada

Which expression is equivalent to 13x(9y – 12)? A. 3xy − 4 B. 3xy − 4x C. 3xy − 12 D. 3y − 4x

Respuesta :

samuelonum1
samuelonum1 samuelonum1
  • 16-09-2020

Answer:

B. 3xy − 4x

Step-by-step explanation:

step one:

Given the expression  13x(9y – 12) we are expected to expand the expression to obtain a similar expression given in the options

step two

we proceed by

[tex]= 13x(9y-12)\\\\=(117xy-156x)[/tex]

step three

we proceed to both terms in the expression

bt a common factor which is 39

[tex]\frac{117xy}{39}-\frac{156x}{39}[/tex]

[tex]3xy-4x[/tex]

From our analysis, the option D matches the expression

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