..3la - 26)2 - 5(a - 26)
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0
Answer:
3a_78_5a+130
3a_5a_78+130
_2a+52
Answered by
0
Answer:
Step-by-step explanation:(31a-26)2-5(a-26)
(31a)2+(26)2-2×31a×26-5×a+5×26
961a2+676-1612a-5a+130
961a2+676+130-1612a-5a
961a2+806-1607a
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