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saveliy_v [14]
3 years ago
14

I need help please and thank u,

Mathematics
1 answer:
Alchen [17]3 years ago
8 0

The illegal values of b are when the denominator equals 0.

So, b^2-2b-8=0 gives you (b-4)(b+2)=0

Therefore, b=4 and b=-2, which is answer A.


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