Fill in the two blanks

(3a^3 - 5b^3) + __ a^3+__ b^3 = ( a^3 + b^3)

The final answer is

3a^3 - 5b^3 - 2a^3 + 6b^3 =  a^3 + b^3

Step-by-step explanation:

It is given that an expression

(3a^3 - 5b^3) + __ a^3+__ b^3 = ( a^3 + b^3)

To find the missing numbers

From the given expression we can write,

3a^3 - 5b^3 + __ a^3+__ b^3 =  a^3 + b^3

Compare LHS and RHS

3a^3 + __a^3 = a^3

__a^3 = a^3 - 3a^3

__a^3 = -2a^3

-5b^3 + __b^3 = b^3

__b^3 = b^3 + 5b^3

__b^3 = 6b^3

Therefore the final answer is

3a^3 - 5b^3 - 2a^3 + 6b^3 =  a^3 + b^3