LMixer5sosCR7Fan
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 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

Which organic compounds would be the best to analyze in order to determine if two species are closely related? (1) fats (3) sugars (2) starches (4) proteins
Describe wind farms. why are they useful?
Given the following solutions:Solution A: pH of 10Solution B: pH of 7Solution C: pH of 5 Which list has the solutions placed in order of increasing H + concentr
Explain why you might want to write very large and very small numbers in scientific notation.
Multiply both sides of the each equation in order to get the coefficient to be an integer. 45=1/2a-3
At a certain location, a gravitational force with a magnitude of 350 newtons acts on a 70.-kilogram astronaut. What is the magnitude of the gravitational field
Explain, in terms of valence electrons, why the bonding in magnesium oxide, MgO, is similar to the bonding in barium chloride, BaCl2.
Potatoes were the main crop in Ireland in the 1800s. Almost the entire population of Ireland was dependent on a single variety of potato, the “lumper.” These po
A student constructed a series circuit consisting of a 12.0-volt battery, a 10.0-ohm lamp, and a resistor. The circuit does not contain a voltmeter or an ammete
Description about a fake super hero??