4z3(3z-1)+7(3z-1)

what is the goal? to simplify? if so it would be:

12z^4-4z^3+21z-7

z^2 means z squared, z^3 z cubed, etc.
i assumed that the 4z3 at the beginning was four z cubed...

4z^3*(3z-1)+7(3z-1)=

4z^3*(3z-1)+(7*3)*z+7*(-1)=

4z^3*3z+4z^3*(-1)+21z-7=

12z^4-4z^3+21z-7

By the way in google type:
Expessions Simplifier

When you see list of results click on:
Expessions Simplifier and Solver-Algebra com

When page be open in rectacangle type your equation 4z3(3z-1)+7(3z-1)
and click option SOLVE OR SIMPLIFY

You will se solution step-by-step

On that site you can simplify any kind of equation.

To simplify the expression 4z^3(3z - 1) + 7(3z - 1), we can distribute the terms inside the parentheses.

First, distribute 4z^3 to both terms inside the parentheses:
4z^3 * 3z = 12z^4
4z^3 * -1 = -4z^3

Now we have:
12z^4 - 4z^3 + 7(3z - 1)

Next, distribute 7 to both terms inside the parentheses:
7 * 3z = 21z
7 * -1 = -7

Now we have:
12z^4 - 4z^3 + 21z - 7

So, the simplified expression is:
12z^4 - 4z^3 + 21z - 7.