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(3x-7)²=9x²-42x+49
(4x+8)²=16x²+64x+64
(x-8)²=x²-16x+64
(3x+10)²=9x²+60x+100
(a+b)²=a²+2ab+b²
(a-b)²=a²-2ab+b²
(x+10)²=x²+20x+100
(3x-7)²=9x²-42x+49
(4x+8)²=16x²+64x+64
(x-8)²=x²-16x+64
(3x+10)²=9x²+60x+100