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15-06-2019
Mathematics

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Which will result in a difference of squares?
(-7x+4)(-7x+4)
(-7x + 4)(4-7x)
(-7x+4)(-7x-4)
(-7x + 4)(7x-4)

Respuesta :

15-06-2019

Answer:

[tex]\large\boxed{(-7x+4)(-7x-4)}[/tex]

Step-by-step explanation:

[tex]\text{The difference of squares:}\ a^2-b^2=(a-b)(a+b)\\\\(-7x+4)(-7x-4)=(-7x)^2-4^2=49x^2-16[/tex]

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