Question

what should be added to 2xcube+6xsquare-5x+8to get3x cube-2x square+6x+15​

Answer 1

Answer:

according to me 3should be added hope it helps you please mark me the brainlest because I want to reach my next rank please please please please

Answer 2

Answer:

The answer is -

$3 {x}^{3} - 2 {x}^{2} + 6x + 15 - (2 {x}^{3} + 6 {x}^{2} - 5x + 8) \\ \\ 3 {x}^{3} - 2 {x }^{2} + 6x + 15 - 2 {x}^{3} - 6 {x}^{2} + 5x - 8 \\ \\ {x}^{3} - 8 {x}^{2} + 11x + 7$