Question

check if X + 1 is a factor of 5 x cube + 4 x square minus 3 x minus 6

Answer 1

bhai first find zero of x+1 then put the value of x if ans is 0 then yes otherwise no

Answer 2

put x= -1
$5( { - 1)}^{3} + 4( { - 1)}^{2} - 3( - 1) - 6 \\ = - 5 + 4 + 3 - 6 \\ = - 11 + 7 \\ = - 4 \\( x + 1) \: is \: not \: a \: factor$