а) (4а²+1)(-4а²-1)+16а⁴
(4а²+1)(-(4а²+1)+16а⁴
-(4а²+1)(4а²+1)+16а⁴
-(4а²+1)²+16а⁴
-(16а⁴+8а²+1)+16а⁴
-16а⁴-8а²+1+16а⁴
-8а²+1
б)(-а-b)(a-b)(a²+b²)(a⁴+b⁴)(a⁸+b⁸)
(-b-a)(b-a)(b²+a²)(a⁴+b⁴)(a⁸+b⁸)
((-b)²-a²)(b²+a²)(a⁴-b⁴)(a⁸-b⁸)
(b²-a²)(b²+a²)(a⁴-b⁴)(a⁸+b⁸)
(b⁴-a⁴)(a⁴-b⁴)(a⁸-b⁸)
-(a⁴-b⁴)(a⁴-b⁴)(a⁸-b⁸)
-(a⁴-b⁴)²(a⁸-b⁸)
-(a⁸-2a⁴b⁴+b⁸)(a⁸-b⁸)
-(a¹⁶-a⁸b⁸-2a¹²b⁴+2a⁴b¹²+a⁸b⁸-b¹⁶)
-a¹⁶+2a¹²b⁴-2a⁴b¹²+b¹⁶
в) (3+а)²(3-а)²
((3+а)(3-а))²
(9-а²)²
81-18а²+а⁴
а⁴-18а²+81
