Question

Find 3x2 − y3 − y3 − z if x = 3, y = −2, and z = −5

Answer 1

Explanation:

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Answer 2

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`{3x}^(2) \: - y ^(3 ) - {y}^(3) - z`

`\: \: x = 3`

`y = - 2`

`z = - 5`

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= 3x²-y³-y³-z

= 3×(3)²-(-2)³-(-2)³-(-5)

= 27+8+8+5

= 48