Question

2x2 + mx – 1 = 0 Find the value of m

Answer 1

Answer:

I got the answer -1

Step-by-step explanation:

2x^2 + mx -1 =0

2x^2+mx=1

x(2x+m)=1

therefore x=1.........(i)

2x+m=1......(ii)

from equation (i)

2(1)+m=1

2+m=1

m=-1