Mathematics

Question

factor the polynomials by finding the GCF
1. 3x+12
2. 7y-7
3. 5x+30y
4. 8m+36n
please help i don't understand this

1 Answer

  • 3x + 12

    The GCF here is 3.

    3x / 3 = x
    12 / 3 = 4

    So we have 3(x + 4)

    7y - 7

    The GCF here is 7.

    7y / 7 = y
    -7 / 7 = -1

    So we have 7(y - 1)

    5x + 30y

    The GCF here is 5.

    5x / 5 = x
    30y / 5 = 6y

    So we have 5(x + 6y)

    8m + 36n

    The GCF here is 4.

    8m / 4 = 2m
    36n / 4 = 9n

    So we have 4(2m + 9n)
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