# Math

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

• Math -

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...

• Math -

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.

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