Question

Using remainder theorem ​

Answer 1

2x+1

2x=-1 x=-1/2.......(I)

put the value of x from equation I

f(x)=4(-1/2)^3+4(-1/2)^2-(-1/2)-1=-4/8-4/4+1/2-1=-1/2-1+1/2-1=1/2+1/2-1-1=1-1=0

2x+1is the factor of f(x).

hope it helps you

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Answer 2

hope it helps!

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