Question

which polynomial should be added in 3 x cube minus 2 X square + 3 to get the polynomial 3 X square + 4?

Answer 1

-3x cube + x square + 1 is the answer.

Answer 2

Let the polynomial be y

as according to question ,

3x³ - 2x² + 3 + y = 3x² + 4

3x³ - 2x² + 3 - 3x² - 4 = - y

3x³ - 5x² - 1 = -y

-3x³ + 5x² + 1 = y

so, the required polynomial is

-3x³ + 5x² + 1