Final answer:
To evaluate the expression x to the power of two plus 3w minus z, substitute the given values of x, w, and z into the expression and evaluate step by step.
Step-by-step explanation:
To write the expression “x to the power of two plus 3w minus z,” we substitute the given values of x, w, and z into the expression. So, x2 + 3w - z becomes 42 + 3(3) - 6.
Now, we can evaluate the expression step by step.
First, compute 42, which is equal to 16.
Next, simplify 3(3), which equals 9.
Finally, subtract 6 from the previous result.
Therefore, the value of x to the power of two plus 3w minus z when x = 4, w = 3, and z = 6 is 16 + 9 - 6 = 19.