Question

check x is equal to -1 is a zero of the polynomial X square + 2 X +1

Answer 1

Heya !!



X = -1




P ( X ) = X² + 2X + 1



P (-1) = (-1)² + 2 × -1 + 1




=> 1 - 2 + 1



=> 2 - 2

=> 0


Remainder = 0.


So,


( X + 1 ) is a factor of the given quadratic polynomial.

Answer 2

Hey !!

x=-1

f(x) = x² + 2x + 1

f (-1) = (-1)² + 2 × -1 + 1 = 2 - 2 = 0

reminder is equal to 0. hence x = -1 is a zero of the polynomial x²+2x+1.