Question

If (x -2) is a factor of x³-mx²+10x-20 then find the value of m. *



-2

2

0

​

Answer 1

Answer:

2

Step-by-step explanation:

x-2 put the value of x in thisx³-mx²+10x-20

Answer 2

Answer:

Given that x-2 is a factor of x³-mx²+10x-20

Therefore the zero of the polynomial is 2 since x-2 is a factor

Now, Substitute the value of x in the given polynomial

(2)³ - m(2)² + 10(2)-20

8-4m+20-20

-4m = - 8 ( since +8 is shifted to right hand side so it becomes -)

- gets cancelled being same signs

4m= 8

M = 2