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Question
Subtract 5x2 – 4y2 + 6y – 3 from 7x2 – 4xy + 8y2 + 5x – 3y.
Sum
Solution
| 7x2 | - | 4xy | + | 8y2 | + | 5x | - | 3y | |||
| - | 5x2 | - | 4y2 | + | 6y | - | 3 | ||||
| (-) | (+) | (-) | (+) | ||||||||
| 2x2 | - | 4xy | + | 12y2 | + | 5x | - | 9y | + | 3 |
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