Question

if -5 is reminder when 3x2+mx-2 is divided by x+2, then m is

Answer 1

Answer:

using remainder theorem

x+2=0

x=-2

3x^2+mx-2=0

3(-2)^2+(-2)m-2=0

3(4)-2m-2=0

12-2m-2=0

10-2m=0

10=2m

m=5 pls mark me brainliest

Answer 2

Answer:

-9/2

Step-by-step explanation:

let p(x)=-2

p(-2)=3(-2)(2)+m(-2)-2

=3×-4+(-2m)-2

=-14-2m

by remainder theorem

-5=-14-2m

-5+14=-2m

9=-2m

-9/2=m