Question

Write an equivalent expression in standard form for

(6z-3)(8z+9)-13(45-7z-z2)

Answer 1

Answer:

The answer is

$61z^2+121z-612$

Step-by-step explanation:

Step one:

given data

The expression is given as

$(6z-3)(8z+9)-13(45-7z-z^2)$

let us open the bracket

$48z^2+54z-24z-27-585+91z+13z^2$

collect like terms we have

$48z^2+13z^2+54z-24z+91z-27-585$

$61z^2+121z-612$