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I need help please and thank u,

I need help please and thank u,-example-1
User Jason Ye
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1 Answer

2 votes

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.


User Lithium
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