If x+3 is a factor of x³+mx²-x+4,find the value of m
Answers
Answered by
1
Answer:
Ur answer
Step-by-step explanation:
Let p(x)=x
3
−mx
2
+10x−20
It is given that (x−2) is a factor of p(x)=x
3
−mx
2
+10x−20
∴p(2)=0
⇒(2)
3
−m×(2)
2
+10×(2)−20=0
⇒8−4+20−20=0
⇒8−4m=0
⇒4m=8
⇒m=2
Similar questions