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Which expression would be easier to simplify if you used the associative property to change the grouping? OA. 6+ 1; +3) OB. I(-0.2) +(-0.6)] +1.7 O c.(2+)+-) O D. (60+ 40) +-27)

Respuesta :

A.

[tex]6+\lbrack\frac{4}{9}+(-\frac{2}{9})\rbrack[/tex]

Since both fractions have the same numerator, you can factorize 1/9 aout of the parentheses, because:

[tex]\begin{gathered} \frac{1}{9}\cdot4=\frac{4}{9} \\ \text{and} \\ \frac{1}{9}\cdot2=\frac{2}{9} \end{gathered}[/tex]

Then you can simplify the expression as:

[tex]6+\frac{1}{9}\lbrack4+(-2)\rbrack=6+\frac{1}{9}\lbrack4-2\rbrack[/tex]

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