Seudónimo Seudónimo
  • 12-03-2018
  • Mathematics
contestada

Select the polynomial that can be factored as (3x + 9)(3x - 9)

A. 9x^2 - 27x - 81

B. 9x^2 + 54x -81

C. 9x^2 - 81

D. 9x^2 - 54x - 81

Thanks!!

Respuesta :

Аноним Аноним
  • 12-03-2018
Answer (C): 9x² - 81

Reason:
9x² - 81
= (3x)² - (9)²
= (3x + 9)(3x - 9)
Answer Link

Otras preguntas

Why did Jefferson Davis find it necessary to attack Fort Sumter?
21 is 70 % of what number?
What distinguishes the U.S. Supreme Court from a state supreme court? State supreme courts have rulings that can be overturned, while U.S. Supreme Court rulings
solve this equation 3x+5y=26 2x-y=13
[tex] \frac{1}{x+1} + \frac{4}{x+4} - \frac{5}{x+5 } [/tex]
Why did Jefferson Davis find it necessary to attack Fort Sumter?
what is utilitarianism?
Which was a cause of the French and Indian War? A. arguments about the prices Indians were paid for the furs they trapped for the British B. arguments between t
Which layer of soil is partly weathered rock? What is the layer called
How is infinite .99999999999 equal 1? (explain)