Answer:
The answer is
[tex]61z^2+121z-612[/tex]
Step-by-step explanation:
Step one:
given data
The expression is given as
[tex](6z-3)(8z+9)-13(45-7z-z^2)[/tex]
let us open the bracket
[tex]48z^2+54z-24z-27-585+91z+13z^2[/tex]
collect like terms we have
[tex]48z^2+13z^2+54z-24z+91z-27-585[/tex]
[tex]61z^2+121z-612[/tex]
