When isaac opens a book, the product of the page nuumbers on the open pages is 420?

Question

Mathematics

Dylan Herman

17 August, 05:20

When isaac opens a book, the product of the page nuumbers on the open pages is 420?

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Answers (1)

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Quintin Hancock · Answer 1

X (x+1) = 420

x²+x-420=0

(x+21) (x-20) = 420

x = - 21 or + 20. since we don't use negative page numbers discard - 21 and let x be 20. the 2 pages are thus 20 and 21