LMixer5sosCR7Fan LMixer5sosCR7Fan

03-10-2017
Mathematics

contestada

Please help ASAP!

If -3 is a zero of P(x) = 2x^3 + 3x^2 - kx - 27, Find the value of k. Show steps, please.

Respuesta :

kritter1 kritter1

03-10-2017

You can just input the value of -3 into the equation to find value of k.

0=2(-3)^3 + 3(-3)^2 +3k -27
27= -54 +27 + 3k
27= -27 = 3k
27+27 = 3k
54/3 = k
18 =k

Hope I helped :)

Answer Link

Otras preguntas

1- how can people , individually or in association with others , bring their influences to bear on government in ways other than voting and elections (select al

A city water tank holds 20 gallons of water. A technician empties 25% of the tank. How many more gallons of water must be removed from the tank so that it has 2

select three reasons propaganda can be a bad thing

What is the best first step in solving the equation 3 +3 square root 6x = 5? A.)Subtract 3 from both sides. B.)Find the cube of 3 square root 6x . C.)Cube b

Which contributes to the polarity of a water molecule?

The great depression did not hit britain as hard as the united states or germany, in part because

Describe how to find the perimeter of an enlarged figure if you know the scale factor and the dimensions of the original figure.

Which phrase describes the variable expression m + 5?

what is a group of words that begins with a preposition and ends with an object

what does it mean to say that momentum is conserved