20-12-2018
Mathematics

contestada

if (x+2) is a factor of h(x) = x^3 + 8x² + Ax + 4 , then valoe of A is:

Respuesta :

LammettHash LammettHash

20-12-2018

If [tex]x+2[/tex] is a factor of [tex]h(x)[/tex], then by the polynomial remainder theorem, [tex]h(-2)=0[/tex]. So

[tex]h(-2)=(-2)^3+8(-2)^2+A(-2)+4[/tex]

[tex]-8+32-2A+4=0\implies2A=28\implies A=14[/tex]

Answer Link

Otras preguntas

helppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppp pls

Justin recently drove to visit his parents who live 96 miles away. On his way there his average speed was 20 miles per hour faster than on his way home (he ran

Which is the best definition of coefficient? A letter that represents an unknown value. O A number that itinultiplied by a variable. Operations that "undo" each

what can cause a mental disorder

What is 223*445= What is 2+2

If your hammer develops a loose head, you can tighten it by banging it on the ground. A little physics secret though - it's better to bang the hammer head up r

hi guys what are yall being for halloween

If a rat cat hybrid ate a rat, would it be partly cannibalism?

What is the tone of the mouses dialogue to the lion when the mouse is trapped?

A cinder block is sitting on a platform 20 m high. It weighs 79 kg. The block has _______ energy.