Math, asked by dhruvv861, 7 months ago

please answer the question​

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Answered by sandeepshukla1402198
0

3 . 2 is the answer

4 . 17xy + yz - 6zx

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Answered by MagicalBeast
0

Answer:

3) 2

4) 6zx - yz - 17xy

Step-by-step explanation:

(3) x² +xy +y²z = (-2)² + (-2)(-1) + (-1)²(-4)

= 4 + 2 - 4 = 2

(4) (3yz+zx-14xy ) - ( 3xy+4yz-5zx)

=> 3yx+zx-14xy - 3xy -4yz + 5zx

= 6zx - yz - 17xy

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