please help me. i need help with these problems

Answer:
(12) 23
(14) -213
(16) 150
Step-by-step explanation:
(12)
[tex]2^2-2(2- -2)- -3^3[/tex]
[tex]2^2-2(2+2)- -3^3[/tex]
[tex]2^2-8- -3^3[/tex]
[tex]4-8- -27[/tex]
[tex]4-8+27\\-4+27\\23[/tex]
(14)
[tex]3(3+|-5|)^2-(3|-5|)^2\\3(-2)^2-(-15)^2\\3(4)-(225)\\12-225\\-213[/tex]
(16)
[tex]-(-4^2)+7(-2^4)-2(-3^3)\\-16+7(16)-2(-27)\\-16+112-(-54)\\-16+112+54\\96+54\\150[/tex]