Question

if x-1 is a factor of the polynomial 3x+mx then find the value of m
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Answer 1

Answer:

x-1 is a factor so we write it

x-1= 0

x= 1

Now we have polynomial,

3x+ mx= 0

put value of x in this equation

3×1 +m×1= 0

3+m=0

m= -3

I hope it helps u

Answer 2

Given :

• ( x - 1 ) is a factor of the Polynomial 3x + mx.

To Find :

• The value of m.

From ( x - 1 ),

$\longrightarrow{{ \sf(x - 1) = 0}}$

$\longrightarrow{ \boxed{ \sf{x = 1}}}$

Now let's substitute the value of x in the given Polynomial.

$\longrightarrow{ \sf{3x + mx = 0}}$

$\longrightarrow{ \sf{3(1) + m(1) = 0}}$

$\longrightarrow{ \sf{3 + m = 0}}$

$\longrightarrow{ \boxed{\sf{m = - 3}}}$

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