Question

F. Subtract:
(i) 7x°- 3x² + 2 from x – 5x + 2
(ii) 3y – 5y2 + 7 + 3y from 2y2 – 5 + 1ly - y3​

Answer 1

Step-by-step explanation:

$x - 5x + 2 - (7 {x}^{0} - 3 {x}^{2} + 2) \\ x - 5x + 2 - 7 + 3 {x}^{2} - 2) \\ 3 {x}^{2} - 4x - 7$

$2 {y}^{2} - 5 + 11y - {y}^{3} - (3y - 5 {y}^{2} + 7 + 3y) \\ 2 {y}^{2} - 5 + 11y - {y}^{3} - 3y + 5 {y}^{2} - 7 - 3y \\ - {y}^{3} + 7 {y}^{2} + 5y - 12$