Question

how to factor m^4-256

Answer 1

\[m^{4}-256?\]

Answer 2

yes

Answer 3

hint:
\(m^4-256=m^4-4^4=(m^2)^2-(4^2)^2\)

Answer 4

no clue

Answer 5

can someone please help me

Answer 6

Use the hint that @mathmate gave you and then use this identity
a^2 - b^2 = (a-b)(a+b)

Answer 7

\[m^4-256=(m^2)^2-(16)^2=(m^2+16)(m^2-16)=(m^2+16)[(m)^2-4^2]=?\]