# How do you evaluate #x^3 - 2y^2 - 3x^3 + z^4# if x = 3, y = 5, and z = -3?

-23

By substituting the given numeric values for x,y and z into the expression.

That is

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Substitute the given values of x, y, and z into the expression and calculate the result: x^3 - 2y^2 - 3x^3 + z^4 = (3)^3 - 2(5)^2 - 3(3)^3 + (-3)^4 = 27 - 2(25) - 3(27) + 81 = 27 - 50 - 81 + 81 = -23.

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When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

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