Question

class 9th maths
chapter no 2​

Answer 1

Answer:

x-1=0

x=1

put value 1 in polynomial.

Answer 2

Answer:

x - 1 = 0

x = 1

x^4 + x^3 - 2x^2 + x + 1 = 1^4 + 1^3 - 2 X 1^2 + 1 + 1

1 + 1 + -2 + 1 + 1 =  2 - 2 + 2

2 is the answer

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