Let the consecutive page numbers be x and x+1. Then:
(x)(x+1) = 306
Distribute:
x^2 + x = 306
Subtract 306 from both sides:
x^2 + x - 306 = 0
Factor:
(x + 18)(x - 17) = 0
x = -18 or x = 17
(can't be negative!)
So the page numbers are 17 and 18.
The product of the page numbers on two facing pages of a book is 306. Find the page numbers.?
n(n + 1) = 306
n² + n - 306 = 0
(n - 17)(n + 18) = 0
n = 17 or -18
The pages must be 17 and 18. However, note that odd numbered pages are always on the right, so this does not reflect a real-world book.
Reply:The page numbers of two facing pages will be consecutive numbers.Let them be 'x' and 'x+1'.
Given
their product = 306
x(x+1) = 306
x^2 + x = 306
x^2 + x - 306 = 0
(x+18)(x-17) = 0
x+18 = 0 (or) x-17 = 0
x = -18 (or) x =17
Page number cannot be negative.
So x = 17
x+1 = 18
So, the page numbers are 17 and 18.
Reply:x(x+1)=306
x^2+x-306=0
Quadratic formula..
Reply:x = 1st page, x + 1 = 2nd page
Finding the no. of the 1st page:
x(x + 1) = 306
x² + x = 306
x² + x - 306 = 0
(x + 18)(x - 17) = 0
We choose the factor that will yield a positive number for x.
x - 17 = 0, x = 17
Page no. of the 2nd page:
= 17 + 1
= 18
Answer: The page numbers are 17 and 18.
Reply:17 and 18!!!!!!!!
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