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运用乘法公式计算:⑴(a+2b-1)^2;⑵(2x+y+z)(2x-y-z).
运用乘法公式运算: 1..(a+2b-1)² 2..(2x+y+z)(2x-y-z) 运用平方差公式运算: 1..(2a-3b)(3b+2a)1、=(a+2b)²-2(a+2b)+1 =a²+4ab+4b²-2a-4b+1 2、[2x+(y+z)][2x-(y+z)] =(2x...
2023-03-07
运用乘法公式运算: 1..(a+2b-1)² 2..(2x+y+z)(2x-y-z) 运用平方差公式运算: 1..(2a-3b)(3b+2a)1、=(a+2b)²-2(a+2b)+1 =a²+4ab+4b²-2a-4b+1 2、[2x+(y+z)][2x-(y+z)] =(2x...