Question

Divided (4x³+4x²-x-1 by (2x+1)

Answer 1

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Zero of the polynomial

( 2x + 1 ) = 0

=) 2x = -1

=) x = - 1 / 2

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P ( -1/2) = 4( -1/2)^3 + 4 ( -1/2)^2-(-1/2) -1

= -1/2 + 1/1 + 1/2 -1

= (-1+2)/2 + 1/2 -1

= 1/2 + 1/2 - 1

= 1-1

= 0

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THANKS :) ❤

Answer 2

p(x)= (4x)(4x)(4x)+(4x)(4x)-x-1

g(x)= (2x+1)

let g(x)=0

2x+1=0

2x=-1

x=-1/2

substitute value of x in polynomial

p(-1/2)=(-1/2)(-1/2)(-1/2)+(-1/2)(-1/2)-(-1/2)-1

do the rest by yourself