# If #f(x)=x^2+3x+k# is divided by #x+k#, remainder is #0#. What is the value of #k#?

##### 2 Answers

#### Answer:

#### Explanation:

we use long division to solve it.

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to be a divisible,

#### Answer:

#### Explanation:

We can use Remainder Theorem here. According to this theorem, if a polynomial

In other words, if

Now

we should have

or

i.e.

For this we must have either

i.e. either