What must be added to 2 X square + 6 x minus 5 to get 3 x square minus – InterviewSolution

1.

What must be added to 2 X square + 6 x minus 5 to get 3 x square minus 2 X + 6

Answer»

er: X³ - 8X² + 11X + 7

Step-by-step explanation:

Subtract (3X³ - 2X² + 6X + 15) from (2X³+ 6X² - 5X + 8)

=> (3X³ - 2X² + 6X + 15) - (2X³+ 6X² - 5X + 8) //take care of signs here

= X³ - 8X² + 11X + 7

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