Solve x3 + x2 - x - 1 =. 0 by factoring by grouping
2 answers:
Answer:
(x^2-1)(x+1)=0
(x+1)(x-1)(x+1)=0
x=1; x=-1
Step-by-step explanation:
Answer:
(x^2-1)(x+1)=0
(x+1)(x-1)(x+1)=0
x=1; x=-1
Step-by-step explanation:
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Answer:
X=4
Step-by-step explanation:
The solution is in the file
I think I could help you
Have fun and feel free to ask me something new.
Or we can prove some properities without calculating by details
I can’t see it it too blurry
No solution
Because 3 unknown needs 3 equation at least
Answer:
1+12
Step-by-step explanation:
can be expressed as
1+12
=13