<PRE><B>Question 752992</B>
 In an experiment, mr. Jensen gave x+2 beans to each of his x-2 students
. If the experiment requires 1596 beans, how many students are in his
 class?
:
(x+2)(x-2) = 1596
FOIl
x^2 - 2x + 2x - 4 = 1596
x^2 - 4 = 1596
x^2 = 1596 + 4
x^2 = 1600
x = {{{sqrt(1600)}}}
x = 40
:
Find the number of students
40 - 2 = 38 students
:
:
Check: 42 beans * 38 student = 1596
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