Question

Express 81-p⁴ as the product of three expressions(with the help of formula)​

Answer 1

Answer:

81-p^4=3^4-p^4

=(3^2-p^2)×(3^2+p^2) [a^2-b^2=(a+b)×(a-b)]

=(3-p)(3+p)(3^2+p^2)

=(3-p)(3+p)(9+p^2)