Question

Evaluate the expression for x=3 and z =5

Answer 1

3(3)(5) - 4(3)
9(5) - 12
45 - 12
33

You would simply have to insert the numbers (the values of x and z) and multiply them all together in the end to get your answer.

Answer 2

Plug in the points.

3(3)(5)-4(3)

Do the multiplication left to right.

9(5)-12

45-12

33

I hope this helps!
~cupcake