SOLUTION: 2. Find the value of the expression when x=3.
X2+2x+3
X2-4x-12
   The value is:
Algebra.Com
Question 984648:  2. Find the value of the expression when x=3.
X2+2x+3
X2-4x-12
   The value is:
 
Answer by Cromlix(4381)   (Show Source): You can put this solution on YOUR website!
 Hi there,
x^2 + 2x + 3
(3)^2 + 2(3) + 3
9 + 6 + 3
= 18
x^2 - 4x - 12
(3)^2 -4(3) - 12
9 - 12 - 12
= -15
Hope this helps:-) 
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