Math, asked by mrityunjaypandey794, 7 months ago

If (x+5) is a factor of p(x) = x3-20x+5k, then k = ?

Answers

Answered by Ojas3705

2

Answer:

k = 5

Step-by-step explanation:

If x + 5 is a factor then

x = -5

We can put x = -5 in p(x),

(-5)³ - 20 (-5) + 5k = 0

-125 + 100 + 5k = 0

-25 + 5k = 0

5k = 25

k = 5

Previous Question

Next Question

Similar questions

Math, 3 months ago

The ratio of milk to water in 21 L of a solution is 5:2. If 3 L of the solution is replaced by 3 L of milk, then the ratio of milk to water in the new solution will be (a)2:1 (b)1:3 (c)3:1 (d)37:12...

Math, 3 months ago

there are 36fresher and 44experienced employees. the average sale of fresher per day is 14400 and the average of experienced per day is 19800.now find the average sale per day of all employees?

Biology, 3 months ago

IS THE HEART HAS 4 CHAMBERS?

Math, 7 months ago

16/25 into decimals. pl give me the correct answer and if possible then also write the explanation and method. i am waiting for the answer...

Social Sciences, 7 months ago

What are the causes of mineral degradation? of class 8 Geography...

Biology, 11 months ago

What is use of Nitrogen?

Math, 11 months ago

Let n be a positive integer. Find the remainder when (5*31^12n) + (20*25^ (2n+1)) is divided by 13, and explain the steps.

Math, 11 months ago

(y^4 +y^3+y+y^5 +1+y^2)by (y^3+1) By long division method Please answer... Pls pls pls...