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Answer:
10. 0
11. -16
12. 2
13. 2
14. 3
15. 0
Step-by-step explanation:
10. (x+4)(x-4) --> x= 4, -4 --> 4 + (-4) = 0
11. 4(-4) = -16
12. 2(x-2)² --> x = 2
13. 2
14. x(x-3) --> x= 0, 3, 0+3=3
15. 0(3) = 0