Question

5. X+1 is a factor of the polynomial
(a) x+x-x+1
(b) +x+x+1
(c) 1++1+1
(d) x^4 +3x^3+3​

Answer 1

Answer:

a) x+x-x+1

Step-by-step explanation:

this is thecorrect answer ,

x+1=0

x=-1______(1)

put equation 1 in (a)

Answer 2

Answer:

X+ 1 is a factor of X + X- X+ 1

X+1= 0

X= (-1)

x+x-x+1 =0

-1-1-(-1) +1 =0

-2 +1+1 = 0

-2+2 equal to 0

so it is the factor

-1-1+1= 0

-2+1=0

-1 is not equal to zero

so it is not the factor

-1-1-1 = 0

-3 is not equal to zero

so it is not the factor

-1^4+ 3(-1)^4 +3

1+3+3= 0

7 is not equal to zero