RandomNoodle5031 RandomNoodle5031
  • 04-09-2019
  • Mathematics
contestada

If xy = a and x2 + y2 = b, which of the following is equivalent to 9b – 18a ?
A) (3x – 3y)2
B) (3x – 6y)2
C) (9x – 9y)2
D) (9x – 18y)2

Respuesta :

sqdancefan
sqdancefan sqdancefan
  • 05-09-2019

Answer:

  A)  (3x -3y)²

Step-by-step explanation:

9b -18a = 9(x² +y²) -18xy

  = 9x² -18xy +9y²

  = (3x -3y)² . . . . . matches choice A

Answer Link

Otras preguntas

How did southeast asia's colonial history produce increased tensions in vietnam ?
Which statement best describes a capsid? a. A capsid defines the shape of the virus. b. A capsid is the outside coat of the virus. c. A capsid is a protein coat
If A+B=76  and A -B=38 whats A divided by B
If A+B=76  and A -B=38 whats A divided by B
how do I figure out what 5550/1000
which of the following would not make a good insulator* rubber*plastic*wood*metal
solve quadratic equation by factoring How do you do it 3k^2 + 72 = 33k
What would be m minus 4 in an algebraic expression
a gasoline pump delivers 4 2/5 gallons of gas per minute. how many minutes will it take to fill a gas tank that holds 16 1/2 gallons?
What is hyperbole? Please help