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...............need help.............:)


Need Help class=

Sagot :

9514 1404 393

Answer:

  9x + 28

Step-by-step explanation:

The expression is prime if its terms have no common factors. We can look at the factors of the expressions in each column

  8x = 2·2·2·x

  9x = 3·3·x

  6x = 2·3·x

__

  42 = 2·3·7 . . . . has a factor in common with every term in column 1

  30 = 2·3·5 . . . . same

  28 = 2·2·7 . . . . no factor in common with 9x

__

A suitable expression is ...

  9x + 28

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