Question

what should be added to 2x³-y³+3y-3 to get x³+y³+2y+1?
give answer with solution.​

Answer 1

what should be added to 2x³ - y³ + 3y - 3

Resulted Answer while adding = x³ + y³ + 2y + 1

=> (x³ + y³ + 2y + 1) - (2x³ - y³ + 3y - 3)

x³ + y³ + 2y + 1 - 2x³ + y³ - 3y + 3

-x³ + 2y³ - y + 4

•°• -x³ + 2y³ - y + 4 = 0

•°• x³ - 2y³ + y - 4 = 0

x³ - 2y³ + y - 4 should ve added to 2x³ - y³ + 3y - 3 to get x³ + y³ + 2y + 1

Answer 2

-x³+2y³-y+4

Step-by-step explanation:

$x {}^{3} + y {}^{3} + 2y + 1 - (2x {}^{3} - y {}^{3} + 3y - 3)$

$x {}^{3} + y {}^{3} + 2y + 1 - 2x {}^{3} + y {}^{3} - 3y + 3$

$x {}^{3} - 2x {}^{3} + y {}^{3} + y {}^{3} + 2y - 3y + 1 + 3$

$= \: \: - x {}^{3} + 2y {}^{3} - y + 4$

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