tanionxavier tanionxavier
  • 15-04-2019
  • Mathematics
contestada

Select the polynomial that can be factored as (2x-5)^2

a 4x^2-25
b 4x^2-20x+25
c 4x^2-10x+25
d 4x^2-20x-25

Respuesta :

sylvain96
sylvain96 sylvain96
  • 15-04-2019

Answer:

d. 4x^2-20x-25

Step-by-step explanation:

So, we have to multiply (2x-5) by itself.  That gives:

(2x-5) (2x-5) = 2x (2x-5) - 5 (2x-5) = 4x² - 10x -10x + 25

so, the correct answer is 4x² - 20x + 25

It's just important to multiply each component carefully by using the distributive property.

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