Question

the value of x for which the polynomial x square - 1 and X square - 2 X + 1 vanish simultaneously is
(a) 2
(b) -2
(c) -1
(d) 1​

Answer 1

Answer:

x^2-2x+1=0

x^2-1x-1x+1=0

x(x-1)-1(x-1)=0

x=1

Answer 2

Answer:

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