Question

if 1 is azero of polynomial
$p(x) = a {x}^{2} - 3(a - 1) - 1$
then find the value of
$a$

Answer 1

If 1 is zero of the polynomial p(x)
Then, put x=1 in p(x) we get ;
p(1)= a(1)2-3(a-1)-1
=) a-3a+3-1
=)-2a+2=0
=) -2a= -2
=) a=2/2
=)a=1