Question

check (x+1) is a factor of x^2_2x+3​

Answer 1

(-1)^2-2*-1+3=1+2+3=6 Not equal time zero which means not a factor

Answer 2

If x+ 1 be a factor of x^2-2x+3, then

(-1)^2 -2.(-1)+3 = 1+2+3 = 6.

so, it is not equal to zero.

Thus, x+1 is not a factor.