9:02 PM Thu Feb 20 \( 54 \% \) Emilio Mejia Fel... R. 5 Evaluate multi-variable express... Video 04:36 V Evaluate the expression for \( c=-1 \) and \( d=2 \). \[ 23 c^{2} d= \] \( \square \) Submit Not ready yet?

To evaluate the expression \( 23c^{2}d \) with the values \( c = -1 \) and \( d = 2 \), we first substitute the values into the expression. This gives us: \[ 23(-1)^{2}(2) \] Calculating this step-by-step, \( (-1)^{2} \) equals 1, so we have: \[ 23 \times 1 \times 2 = 46 \] Thus, the value of the expression is 46! Let's not forget about the role of multi-variable expressions in real life! These expressions are quite common in fields such as economics or engineering, where variables often represent different quantities affecting one another. For instance, when calculating costs in a budget, several factors (like materials and labor) can influence the total, which can be neatly summarized using a multi-variable expression. It's a mathematical way of keeping everything organized as you juggle multiple inputs!