Answer:
16. ( a^ 2 + b ^3 ) ( a^ 2 − b^ 3 )
17. ( c + 9 ) ( c −9 )
18. ( 2 h + 7 ) ( 2 h − 7 )
19. ( 4 j + 9 k ) (4 j − 9 k )
20. ( 1 + 5q 2 ) ( 1 -5 q 2 )
16. where
17. where a=c and b=9.(c+9)(c-9)
sorry ito lang kaya ko D:
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Answers & Comments
Answer:
16. ( a^ 2 + b ^3 ) ( a^ 2 − b^ 3 )
17. ( c + 9 ) ( c −9 )
18. ( 2 h + 7 ) ( 2 h − 7 )
19. ( 4 j + 9 k ) (4 j − 9 k )
20. ( 1 + 5q 2 ) ( 1 -5 q 2 )
Answer:
16.
where 
17.
where a=c and b=9.(c+9)(c-9)
sorry ito lang kaya ko D: