What expression is equivalent to open paren 5 z squared plus 3 z plus 2 close paren squared ?
A
25 z to the 4th power plus 30 z cubed plus 19 z squared plus 12 z plus 4B
25 z to the 4th power plus 30 z cubed plus 29 z squared plus 12 z plus 4C
5 z to the 4th power plus 9 z squared plus 4