Question

2. What should be subtracted from 2x3 -3x2y +3y3 to get x3 -2x2y +4y3?

Answer 1

Answer:

( 2x³ - 3x²y + 3y³ ) - (A) = x³ - 2x²y + 4y³

Step-by-step explanation:

i.e. 2x³ - 3x²y + 3y³ - ( x³ - 2x²y + 4y³ ) = A

=> 2x³ - 3x²y + 3y³ - x³ + 2x²y - 4y³ = A

Rearranging

=> 2x³ - x³ - 3x²y + 2x²y + 3y³ - 4y³ = A

=> x³ - x²y - y³ = A

i.e. x³ - x²y - y³ should be subtracted from 2x³ - 3x²y + 3y³ to get x³ - 2x²y + 4y³