Question

find the value of m,if x²+2mx+1=0 at x=-2​

Answer 1

Answer:

m=5/4

Step-by-step explanation:

(-2)²+2m(-2)+1=0

4-4m+1=0

5-4m=0

-4m=0-5

-4m=-5

m=5/4

hope it help you

please mark me brainleast

Answer 2

Answer

Given,

x

2

−2mx+m

2

−1=0

(x−m)

2

−1=0

(x−m+1)(x−m−1)=0

x=m−1,m+1−2<m−1,m+1<4

m>−1,m<3

∴−1<m<3

the value of m ranges between -1 and 3