tj5essieannab tj5essieannab
  • 21-11-2016
  • Mathematics
contestada

Find (fg)(-4) when f(x) = x + 5 and g(x) = 5x2 + 10x - 5.

Respuesta :

HomertheGenius
HomertheGenius HomertheGenius
  • 22-11-2016
f g = ( x + 5 ) · ( 5 x² + 10 x - 5 ) = 
= 5 x³ + 10 x² - 5 x + 25 x² + 50 x - 25 = 5 x³ + 35 x² + 45 x - 25 =
= 5 ( x³ + 7 x² + 9 x - 5 ) 
(f g) ( - 4 ) = 5 * ( - 64 + 112 - 36 - 5 ) = 5 * 7 = 35
Answer Link

Otras preguntas

6.___He journeyed to the court of the great Kublai Khan, returning to Europe after seventeen years.
what is a cloudburst?
in the given figure , the value of x is
An object that is farther from a converging lens than its focal point always has an image that is _____.invertedvirtualthe same in sizesmaller in size
1/6 of a ship's crew are engineers, 1/4 are stewards and the rest are soldiers. if there are 48 crew members in all, how many sailors are on the board of the sh
You want to determine if one peak is steeper than another peak, based on a topographic map. What would you see on the steeper peak?
What is the correct answer for 20 + 20 × 0 + 1 = ?
Help me please jem boy wants to make his 8-meter square pool into a rectangular one by increasing its length by 2m and decreasing its width by 2m .jem boy asked
6.___He journeyed to the court of the great Kublai Khan, returning to Europe after seventeen years.
what is 3xY=4w solve for y in formula transformation