Given that - 4 is a root of the equation 2x3+6x2+7x+60=0. Find the other roots.
Given that -4 is a root of the given equation. This implies that (x + 4) is a factor of 2x3+6x2+7x+60=0
It dividends 2x3+6x+7x+60 with zero remainder
2x2−2x+15x+42x3+6x2+7x+50−2x3−8x2 −2x2+7x+60 −2x2−8x 15x+60 −15x−60 0
Quotient is 2x2−2x+15=0