pls answer the pic questions please
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if
x+1 and x-1 are factors
then
the polynomial will be zero at
x=1 and x=-1
use it
then you'll get two equations
solve them then you will get your answer
because in the question some term is missing
x⁴+x²+1 is not factorisable
ax⁴+bx³+cx²+dx+e
will be zero at x=1 and x=-1
as x²-1 or (x+1)(x-1)
is its factor
so
a+b+c+d+e = 0
and
a-b+c-d+e = 0
a+c+e = b+d
x¹²-1 = (x-1)(x¹¹+x¹°+...........x⁴+x³+x²+x¹+1)
hope it helps you
@di
x+1 and x-1 are factors
then
the polynomial will be zero at
x=1 and x=-1
use it
then you'll get two equations
solve them then you will get your answer
because in the question some term is missing
x⁴+x²+1 is not factorisable
ax⁴+bx³+cx²+dx+e
will be zero at x=1 and x=-1
as x²-1 or (x+1)(x-1)
is its factor
so
a+b+c+d+e = 0
and
a-b+c-d+e = 0
a+c+e = b+d
x¹²-1 = (x-1)(x¹¹+x¹°+...........x⁴+x³+x²+x¹+1)
hope it helps you
@di
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