Answer :
We have the following general rule for exponents:
[tex](a\cdot b)^n=a^n\cdot b^n[/tex]Then, in this case we have:
[tex]-(3z)^2=-(3^2\cdot z^2)=-9z^2[/tex]therefore, the simplifed expression is -9z²
We have the following general rule for exponents:
[tex](a\cdot b)^n=a^n\cdot b^n[/tex]Then, in this case we have:
[tex]-(3z)^2=-(3^2\cdot z^2)=-9z^2[/tex]therefore, the simplifed expression is -9z²