Question

Just two Algebra questions. Thank you :)

Answer 1

$4m^6 - 16m^{10}$

$= (2m^3)^2 - (4p^5)^2$

$= (2m^3 -4p^5)(2m^3 + 4p^5)$

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This expression is the difference of 2 squares :

$\bf 9n^4 - 49n^6$

$= (3n^2)^2 - (7n^4)^2$

$= (3n^2 + 7n^4) (3n^2 - 7n^4)$