Multiply: (a−5)(a2+5a+25)(a - 5)(a^2 + 5a + 25)(a−5)(a2+5a+25).
a3−125a^3 - 125a3−125
a3+125a^3 + 125a3+125
a3−5a2+25a−125a^3 - 5a^2 + 25a - 125a3−5a2+25a−125
a2−25a^2 - 25a2−25