the zeroes of the cubic polynomial x^3-x are
A) 0,1,2
B) 0,1,1
C) 0,1,-1
D) both A and B
Answers
Answered by
1
Answer:
c) 0, 1, -1
Step-by-step explanation:
The zeroes of the polynomial is for what values of x is the expression 0
x³-x = 0
To find this we can factorise the polynomial
x³-x = 0
take out x
x(x²-1) = 0
difference of squares
x(x-1)(x+1)=0
And now we see there are three ways we can make this expression 0.
If we set x=0 everything is 0, if we set x=1 then (x-1)=0 and if we set x =-1 then (x + 1) = 0.
If any of these are 0 it makes the whole left side 0.
So these are the three answers. 0, 1, -1
Answered by
0
Step-by-step explanation:
yes option c. 0,1,-1 and follow me
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