balakrishnapokhrel1 balakrishnapokhrel1
  • 17-05-2020
  • Mathematics
contestada

factorise : x^2y^2-16​

Respuesta :

jimrgrant1 jimrgrant1
  • 17-05-2020

Answer:

(xy - 4)(xy + 4)

Step-by-step explanation:

x²y² - 16 ← is a difference of squares and factors in general as

a² - b² = (a - b)(a + b), thus

x²y² - 16

= (xy)² - 4²

= (xy - 4)(xy + 4)

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