Question 433023
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Hi
Let x represent those numbers
Question states***
 (x+2)(x-5)= 18
 x^2 -3x-10 = 18
 x^2-3x-28 = 0
factoring
(x-7)(x+4) = 0  Note:SUM of the outside terms(4x) and the inside terms(-7x) = -3x
(x-7) = 0  x = 7
(x+4) = 0  x = -4
CHECKING our Answers***
 9*2 = 18
-2*-9  = 18