An algebra problem by d w

Algebra Level 3

If f ( x ) = x 2 + 5 x + 6 x + 2 f(x)=\dfrac{x^2+5x+6}{x+2} , what is f ( − 2 ) f(-2) ?

1 0 Undefined 3 2

D W by d w , 21, Canada

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1 solution

Fidel Simanjuntak
Jan 17, 2017

We notice that f ( − 2 ) f(-2) makes the value of the denominator into 0 0 . We conclude that f ( − 2 ) f(-2) is undefined!

0 Helpful 0 Interesting 0 Brilliant 0 Confused

Huh? Use L'Hopital

Gusti Firmando - 4 years, 4 months ago

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But the answer is undefined right? At least, i am correct, somehow.....

Fidel Simanjuntak - 4 years, 4 months ago

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