Let the missing factor be a.
[tex]12x^7y^4 = 4x^3y^2a[/tex]
[tex]a = 12x^7y^4 \div 4x^3y^2[/tex]
[tex]a= \dfrac{12x^7y^4}{4x^3y^2} [/tex]
[tex]a = 3x^4y^2[/tex]
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Answer: The missing factor is 3x⁴y².
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