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How do I determine whether each binomial is a difference of two squares
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How do I determine whether each binomial is a difference of two squares

User Taylor Lopez
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A binomial is a difference of two squares if it can be written as a^2 - b^2. Note the subtraction sign. For example 9x^4 - 16 = (3x^2)^2 - 4^2 so it is a difference of two squares.
User Simon Prickett
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