what should be added to 3xy-4yz+4zz to get zy±3yz-2zx+7
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Answered by
1
Step-by-step explanation:
3xy - 4yz + 4zz - zy + 3yz - 2zx + 7 =
3xy - yz + 4zz - 2zx + 7 is the right answer...
Answered by
0
Req. number =zy +3yz -2xz +7 -(3xy-4yz+4xz)
=zy+3yz-2xz+7-3xy+4yz-4xz
=8yz-6xz-3xy +7
or 6yz-6xz-3xy+7
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