`(1-x)(1+x^2)(1+x)(1+x^2)` equals:a.1-x^6b.1+x^6c.1-x^8d.1+x^8e. None of the above

Asked on by nasirjam

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degeneratecircle | High School Teacher | (Level 2) Associate Educator

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None of the original answer choices is correct, so I added a choice e. We can rearrange and then use the difference of squares formula twice.



This is the second multiple choice question you've posted recently where all the answer choices are wrong. If you're getting them from a book, I suggest finding a new book :)


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