if x=-5, y=4 and z=-3 solve x squared (3x-8y)

you have to be polite and when you do everything you will be a great student teacher

x^2 (3x - 8y)

Substitute the values for the various letters and solve. Is one of the x's supposed to be a z?

I guess you couldn't solve it. Here's how to solve it

x^2(3x-8y)
=25(-15-32)
=-1175

To solve the expression x^2(3x-8y) when x=-5, y=4, and z=-3, we first substitute the given values into the expression.

Plug in x=-5, y=4 into the expression:
(-5)^2(3(-5)-8(4))

Simplify:
25( -15 - 32 )

Next, simplify the expression inside the parentheses:
25( -47 )

Finally, perform the multiplication:
-1175

Therefore, when x=-5, y=4, and z=-3, the value of the expression x^2(3x-8y) is -1175.