In `-7xy^(2)z^(3)`. write down the coefficient of:
`z^(3)`

Answer

To find the coefficient of \( z^3 \) in the expression \( -7xy^2z^3 \), we can follow these steps:

### Step 1: Identify the expression
The given expression is:
\[ -7xy^2z^3 \]

### Step 2: Understand the structure of the expression
In algebra, an expression can be broken down into its components, which include coefficients and variables. The coefficient is the numerical factor that multiplies the variables.

### Step 3: Isolate the coefficient of \( z^3 \)
In the expression \( -7xy^2z^3 \), the term \( z^3 \) is multiplied by the coefficient, which is the product of all other factors in the expression.

### Step 4: Write down the coefficient
The coefficient of \( z^3 \) in the expression \( -7xy^2z^3 \) is:
\[ -7xy^2 \]

### Final Answer
Thus, the coefficient of \( z^3 \) is:
\[ -7xy^2 \]

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