分解因式(1)4(2x2-x+1)(x2-2x+3)-(3x2-3x+4)2 (2)(x+5)^4+(x+3)^4-82

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分解因式(1)4(2x2-x+1)(x2-2x+3)-(3x2-3x+4)2 (2)(x+5)^4+(x+3)^4-82
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分解因式(1)4(2x2-x+1)(x2-2x+3)-(3x2-3x+4)2 (2)(x+5)^4+(x+3)^4-82
分解因式(1)4(2x2-x+1)(x2-2x+3)-(3x2-3x+4)2 (2)(x+5)^4+(x+3)^4-82

分解因式(1)4(2x2-x+1)(x2-2x+3)-(3x2-3x+4)2 (2)(x+5)^4+(x+3)^4-82
(1)
4(2x²-x+1)(x²-2x+3)-(3x²-3x+4)²
=4(2x²-x+1)(x²-2x+3)-[(2x²-x+1)+(x²-2x+3)]²
=4(2x²-x+1)(x²-2x+3)-(2x²-x+1)²-2(2x²-x+1)(x²-2x+3)-(x²-2x+3)²
=-[(2x²-x+1)²-2(2x²-x+1)(x²-2x+3)+(x²-2x+3)²]
=-[(2x²-x+1)-(x²-2x+3)]²
=-(x-2)²
(2)
(x+5)^4+(x+3)^4-82
= [(x+5)^4-81]+[(x+3)^4-1]
=[(x+5)²+9][(x+5)²-9]+[(x+3)²+1][(x+3)²-1]
=[(x+5)²+9][(x+8)(x+2)]+[(x+3)²+1][(x+4)(x+2)]
=(x+2)[(x²+10x+34)(x+8)+(x²+6x+10)(x+4)]