Question

add 5x² + 6xy + 7yz+ 8 and 8x² - 9xy + 7yz -9​

Answer 1

5x² + 6by + 7yz + 9

8x² - 7xy + 8yz - 11

Answer 2

SOLUTION

TO DETERMINE

To add :

5x² + 6xy + 7yz + 8 and 8x² - 9xy + 7yz - 9

EVALUATION

Here the given two expressions are

5x² + 6xy + 7yz + 8 and 8x² - 9xy + 7yz - 9

Now on addition we get

= ( 5x² + 6xy + 7yz + 8 ) + ( 8x² - 9xy + 7yz - 9 )

= 5x² + 8x² + 6xy - 9xy + 7yz + 7yz + 8 - 9

= 13x² - 3xy + 14yz - 1

FINAL ANSWER

Hence the required Value

= 13x² - 3xy + 14yz - 1

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