Question

subtract:-
6x - 7x2 + 5x -3 from 4-5x + 6x2 - 8x3​

Answer 1

$= > (6x {}^{3} - 7x {}^{2} + 5x - 3)........(1) \\ = >( 4 - 5x + 6x {}^{2} - 8x {}^{3}) .........(2) \\ = > (4 - 5x + 6x {}^{2} - 8x {}^{3} ) - (6x {}^{3} - 7x {}^{2} + 5x - 3) \\ = > 4 - 5x + 6x {}^{2} - 8 x {}^{3} - 6x {}^{3} + 7x {}^{2} - 5x + 3 \\ = > 7 - 10x + 13x {}^{2} - 14x {}^{3}$