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1-3(x-1/2y²)+(-x+1/2y²)简化
题目详情
1-3(x-1/2y²)+(-x+1/2y²)
简化
简化
▼优质解答
答案和解析
1-3(x-1/2y²)+(-x+1/2y²)
=1-3x+3/2y²-x+1/2y²
=1-4x+2y²
=1-3x+3/2y²-x+1/2y²
=1-4x+2y²
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