Question

xpower2 +2x+1 find the zeroes of quadratic polynomial

Answer 1

x²+2x+1 = 0

x²+x+x+1 = 0

x(x+1)+1(x+1) = 0

(x+1)(x+1) = 0

x+1 = 0

x = -1

Hence, -1 is the zero of this polynomial.