SOLUTION: 2. Find the value of the expression when x=3. X2+2x+3 X2-4x-12 The value is:

Algebra ->  Expressions-with-variables -> SOLUTION: 2. Find the value of the expression when x=3. X2+2x+3 X2-4x-12 The value is:       Log On


   

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) About Me  (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:-)