Question

simplify 64L^3+125m^3​

Answer 1

64L^3+125m^3

= (4L)^3 + (5m)^3

{we know ( a3 + b3 ) = (a + b) (a2 - ab + b2 ). }

= (4L + 5m) (16L^2 - 20mL + 25m^2)