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Which of the following expressions cannot be factored a. 16+4x b. 3x+7 c. 25x+30y d. 40x-30y
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Which of the following expressions cannot be factored a. 16+4x b. 3x+7 c. 25x+30y d. 40x-30y

User Draksia
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C. 3x + 7 because you can factor out the other 3.
a. 16+4x=4(4+X)
b. 25x+30y=5(5x+6y)
d. 40x-30y = 5(8x-6y)
hope this helps!
User Prdatur
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