Question

Add the following expressions.
(a) x^3 - 2x^2y-y^3, 7x^2y- 4x^3 and 4y^3 + 5x^2y .
class 7th , subject math .​

Answer 1

Step-by-step explanation:

2

_Horizon A is the topmost

zone, where organic materials

have got incorporated with

the mineral matter, nutrients

and water, which are

necessary forthe growth of

plants. *

Answer 2

Step-by-step explanation:

see this u will understand