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9 November, 04:00

Which expression (s) have a greatest common factor (GCF) of 3xy2 with 42xy4

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Answers (1)
  1. 9 November, 07:56
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    3xy2

    Step-by-step explanation:

    GCF is the largest factors which are common in two or more numbers.

    We find the GCF of two or more number number by breaking each number into their factor and then observe which factors are common in the group and then we multiple the common number to get the GCF.

    Lets understand this by an example

    GCF of 24 and 36

    factors of 12 = 2*2*2*3, factors of 36 = 2*2*3*3

    hence we see that 2,2 and 3 are common in 12 and 36 hence

    GCF will be 2*2*3 = 12

    Coming back to problem

    given

    Expression 1 is 3xy^2

    factor of 3xy^2 = 3*x*y*y

    Expression 2 is 42xy4

    factor of 42xy4 = 2*3*7*x*y*y*y*y

    common factor between the two expressions are

    3, x, y, y

    hence GCF will be = 3*x*y*y = 3xy2 Answer
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