1) (2z+9) (2z+10) for \(z = 4\), iii+ii+i and the value is .
 
 
2) 3(2z+12c) for \(c = 2,\) \(z = 10\), ii+ii and the value is .
 
 
3) (3x+3) (3x+3) for \(x=1\), 9ii+ii+9 and the value is .
 
(Note: Enter numbers and variables in separate windows; enter the powers in windows next to variables.)