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24-09-2020
Mathematics

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Explain what mistake is made in the following false statement: 3(x+4)(x+7)=(3x+12)(3x+21)

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SailorStarlight SailorStarlight

24-09-2020

Answer: The 3x+21

Step-by-step explanation:

3(x=4) = (3x+12) The (3x+12) is being multiplied by (x+7) and the 3 should only be distributed to (x+4) which meant the the equation when simplified should have become (3x=12)(x+7).

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