find the sum of 7xy + 5yz - 3zx and 4yz + 9zx - 4xy
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Answered by
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Answer:
=(7xy+5yz−3zx)+(4yz+9zx−4y)+(−3xz+5x−2y)
=7xy+5yz−3zx+4yz+4zx−4y−3xz+5x−2y
=7xy+9yz+3zx+5x−6y
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Step-by-step explanation:
Answered by
1
Answer:
7xy+5yz-3zx+4yz+9zx-4xy
7xy+4xy+5yz+4yz+9zx-3zx
11xy+9yz+6zx
hope it will help you dear ☺️
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