Question

a+2m-5 =0 , then find a^3+8m^3-125​

Answer 1

Answer: -30am

Step-by-step explanation:

a^3+8m^3-125= a^3+(2m)^3+(-5)^3

But a+2m-5=0

We know if, a+b+c=0, then,

a^3+b^3+c^3= 3abc

So,

a^3+8m^3-125= a^3+(2m)^3+(-5^)3

= 3× a× 2m× (-5)

= -30am