Question

check whether 2,-3 are zeroes of the polynomials is 6-x-x2

Answer 1

Answer:

$if \: f(x) = 2 \\ 6 - x - 2x = \\ = 6 - 2 - 2(2) \\ = 6 - 2 - 4 \\ = 6 - 6 \\ = 0 \\ yes \: f(2) \: is \: zero \: of \: the \: polynmial \\ \\ if \: f(x) = - 3 \\ 6 - x - x2 = \\ = 6 - 3 - 2( - 3) \\ = 6 - 3 + 6 \\ = 3 + 6 \\ = 9 \\ \\ no \: f( - 3)is \: not \: zero \: of \: the \: polynmial$