Question

4. What should be added to 4x2 - 5xy + 7 to get
- 3x2 + 4xy – 5?


if you dont know the answer then
please dont give answer.
let me tell that give answer step by step ​

Answer 1

Answer:

$hello$

The required expression can be got by subtracting xy – 3yz + 4zx from 4xy – 3zx + 4yz + 7.

Therefore, required expression = (4xy – 3zx + 4yz + 7) – (xy – 3yz + 4zx)

= 4xy – 3zx + 4yz + 7 – xy + 3yz – 4zx

= 4xy – xy – 3zx – 4zx + 4yz + 3yz + 7

= 3xy – 7zx + 7yz + 7

Answer 2

Answer:

I Don't no

Step-by-step explanation:

because I am gwavar