Factorise:x³-x²+ax+x-a-1
Answers
Answered by
2
Answer:
x3-x2+ax+x-a-1
=x3-x2=x
x+ax+x-a-1
=x(1+a)+
Answered by
1
Answer:
x3-x2+ax-a+x-1
=x2(x-1)+a(x-a)+1(x-1)
=(x-1)(x2+a+1)
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