Question 184741
"The length of a rectangle is twice the width. the area is 50 yd^2" -----> LW=50
and L=2W


---> 
(2W)W=50


2W^2=50

W^2=25


W=5...


L=2*5=10


Ans: width: 5, length: 10



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" A student opens a mathematics book to two facing pages" ----> x(x+1)=2162


x^2+x=2162


x^2+x-2162=0


(x-46)(x+47)=0


x=46, x=-47


Ans: pages are 46 and 47