Question

Check whether 1 and 1 are the zeroes of the polynomial x2+x-2​

Answer 1

first let us assume that p(x) =1

so, now substitute 1 in the place of x ..

1^2+1-2 = 0

1 + (-1) =0

1-1 =0

0=0

so if l

LHS = RHS

1 and 1 are the zeroes of the given polynomial.

Hope that answers your question!