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a²b²-0.01x²y-2xy²+y²16-(2a+3b)²(a²+4)²-16a²

题目详情
a²b²-0.01 x²y-2xy²+y² 16-(2a+3b)² (a²+4)²-16a²
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答案和解析
a²b²-0.01=(ab)²-0.1²=(ab+0.1)(ab-0.1)x²y-2xy²+y³=y(x²-2xy+y²)=y(x-y)² 16-(2a+3b)² =4²-(2a+3b)²=(4+2a+3b)(4-2a-3b) (a²+4)...