nightstar1 nightstar1

12-06-2018
Mathematics

contestada

Please please
I need help ((((riiiight now)))
What's the right answer and explain why!!!!!

Please please I need help riiiight now Whats the right answer and explain why class=

Respuesta :

Banabanana Banabanana

12-06-2018

use the formula a²-b² = (a-b)(a+b)

p⁴ - 81
= (p²)² - (9)²
= (p²+9)(p²-9) first option
= (p²+9)(p² - 3²)
= (p²+9)(p+3)(p-3) third option

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