Question

7 - 2x - 3 x², 2 x² - 5 x - 3 ​

Answer 1

Answer:

please sorry mujhe nhi ata

Answer 2

Answer:

Step-by-step explanation:

What do we have to do????

If we have to add:

7 - 2x - 3x² + 2x² - 5x - 3

= 7 - 3 ​ - 2x - 5x - 3x² + 2x²

= 4 - 7x - x²

If we have to subtract:

7 - 2x - 3x² - (2x² - 5x - 3)

= 7 - 2x - 3x² - 2x² + 5x + 3

= 10 + 3x - 5x²