Question

is ×-1 a factor of the polynomial x3-8x+19x-12​

Answer 1

Answer:

bro here it's your answer

Answer 2

Answer:

$let \: f(x) = {x}^{3} - 8x + 19x - 12 = {x}^{3} + 11x - 12 \\ (x - 1) \: is \: a \: factor \: of \: f(x) \: if \: f(1) = 0 \\ here \: \\ f(1) = 1 + 11 - 12 = 0 \\ so \: (x - 1) \: is \: factor \: of \: f(x)$