Question

evaluate. (m+3) (m-3) (m2+9)​

Answer 1

Step-by-step explanation:

(m+3) ( m -3)(m^2 + 9 )

= (m^2 - 9)( m^2 +9)

= ( m^4 - 81)

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Answer 2

answer will be m⁴-3⁴

by using the identity (a+b)(a-b)=a²-b²