y = 0
y = 2
y = 3
y = 5
y = 10
Correct answer is D
y+2y2−3y−10
y2−3y−10=0⟹y2−5y+2y−10=0
y(y−5)+2(y−5)=0
(y−5)(y+2)=0
y+2(y−5)(y+2)=1y−5
∴ At y = 5, the expression \frac{y + 2}{y^2 - 3y - 10} is undefined.
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