# Math Help - Algebraic q

1. ## Algebraic q

Show that x + 2c is a factor of f (x) = xcubed + 7cxsquared + 11csquared(x) + (2c)cubed, c a constant, and find the three roots of f(x) = 0.
Can someone show how to do this q please. Thanks!

2. Originally Posted by Detanon
Show that x + 2c is a factor of f (x) = xcubed + 7cxsquared + 11csquared(x) + (2c)cubed, c a constant, and find the three roots of f(x) = 0.
Can someone show how to do this q please. Thanks!
hi
if $x+2c$ is a factor of $f$,then $-2c$ is a root of $f$.