Question

we add 7xy+5yz-3zx, 4yz+9zx-4y, and -3xy+5x-2xy, then the answer is​

Answer 1

$\sf{Answer}$

Step-by-step-explanation:-

Given to add the terms :-

7xy+5yz-3zx, 4yz+9zx-4y, and -3xy+5x-2xy

Concept Required:-

For adding the variables we have to add only the like terms We cannot add unlike terms

Eg:- x + x + y = 2x + y

y + z + x = we cannot add

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From this , Concept We can add the following terms

7xy + 5yz - 3zx. + 4yz + 9zx + (-3xy) + 5x + (-2xy)

Keep a like terms together

7xy +(-3xy) + (-2xy) + 5yz + 4yz + 9zx +(-3zx) +5x -4y

7xy - 3xy -2xy + 5yz + 4yz + 9zx -3zx + 5x -4y

7xy - 5xy + 9yz + 6zx + 5x -4y

2xy + 9yz + 6zx + 5x -4y

That's all there are no like terms to add

So, the sum of ,

7xy+5yz-3zx, 4yz+9zx-4y, and -3xy+5x-2xy is 2xy + 9yz + 6zx + 5x -4y

Answer 2

Answer:

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