Expand ( 7 m - 4 n ) 2 =
Answers
Answered by
0
Answer:
(7m-4n)2=?
(3mn)2=?
6mn=?
Answered by
3
Answer:
14 m - 8 n
Step-by-step explanation:
( 7 m - 4 n ) 2
= 2×(7 m) + 2×(- 4 n)
= 14 m - 8 n
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