Question

plzzz help me

X cube + 3x Square -5x+4 from 3x cube - xsq. + 2x - 4

Answer 1

$3 {x}^{3} - {x}^{2} + 2x - 4 - {x}^{3} - 3 {x}^{2} + 5x - 4 \\ = 2 {x}^{3} - 4 {x}^{2} + 7x - 8 \\ \\ is \: it \: your \: answer \: \\ if \: please \: comment$