Question

If x+a is a factor of ma-nx-3x^2 then prove that a=m+n/3

Answer 1

Answer:

Step-by-step explanation:

given that x+a is a factor then using the remainder theorem we can say that

P(-a)=0

then,

ma-n(-a)-3(-a)^2=0

ma+na-3a^2=0

a(m+n-3a)=0

m+n-3a=0

m+n=3a

m+n/3=a

hence proved

Answer 2

Answer:

this is your solution.