Question
Asked Oct 3, 2019
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hello can you help me with this problem please.

see attcahed picture please.

Find the following limit. Your answer should be a number,
4. lim -3x-18
+3
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Find the following limit. Your answer should be a number, 4. lim -3x-18 +3

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Expert Answer

Step 1

Here the limit cannot be applied directly, thus factor the numerator as follows.

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x2-3x-18 xr2- 6x+3x -18 x(x-6)+3(x-6) =(x-6)(x+3)

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Step 2

Now substitute and evaluate ...

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x2-3x-18 lim (x-6)(x+3) (x+3) lim x3 lim (x-6 x--3 =-3-6 -9

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Tagged in

Math

Calculus

Limits