А2. –
А3. а) 0.01(4а²+3b)(4a²-3b)
б) 5(х+2)²
в) 3c((3c+b)(9c²-3cb+b²))
B1. a) a²-9b²-a-3b
б) (5c+2x+1)(5c-2x-1)
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Answers & Comments
А2. –
А3. а) 0.01(4а²+3b)(4a²-3b)
б) 5(х+2)²
в) 3c((3c+b)(9c²-3cb+b²))
B1. a) a²-9b²-a-3b
б) (5c+2x+1)(5c-2x-1)