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Identify which values of x are undefined in the expression. (x²+4x+3)/(x²-9)

User Mbejda
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Final answer:

The values of x that make the expression undefined in (x²+4x+3)/(x²-9) are x = 3 and x = -3.

Step-by-step explanation:

To identify which values of x are undefined in the expression (x²+4x+3)/(x²-9), we need to find the values of x that make the denominator equal to zero. In this case, the denominator is x²-9. So, we set x²-9 equal to zero and solve for x:

x²-9 = 0

(x-3)(x+3) = 0

x-3 = 0 or x+3 = 0

x = 3 or x = -3

Therefore, the values of x that make the expression undefined are x = 3 and x = -3.

User Puffadder
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