Question

x+2 is a factor of x cube + 2 ax square + ax -1​

Answer 1

Explanation:

g(x)=x-2=0

=x=0+2

=x=2

p(x)=x³-2ax²+ax-1

p(2)=(2)³-2a*(2)²+a*2-1

=8-2a*4+2a-1=0

=8-2a*4+2a=0+1

=8-8a+2a=1

= -8a +2a=1-8

=-6a=-7

=a=-7/-6

=a=7/6

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