1)
(a²+b²+2ab)(a+b)
(a+b)²((a+b)
(a+b)³
2)
(a+b)+(b+c)+(c+d)+(a-c)
a+2b+2c+d+a-c
2a+2b+2c+d-c
2a+2b+c+d
2(a+b)+c+d
3)
3x⁴-[₋3x⁴+6x²+x-(2x⁴+3)]
3x⁴+3x⁴-6x²-x+2x⁴+3
8x⁴-6x²-x+3
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1)
(a²+b²+2ab)(a+b)
(a+b)²((a+b)
(a+b)³
2)
(a+b)+(b+c)+(c+d)+(a-c)
a+2b+2c+d+a-c
2a+2b+2c+d-c
2a+2b+c+d
2(a+b)+c+d
3)
3x⁴-[₋3x⁴+6x²+x-(2x⁴+3)]
3x⁴+3x⁴-6x²-x+2x⁴+3
8x⁴-6x²-x+3