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分解因式:ax^2+2axy+ay^2
人气:131 ℃ 时间:2020-03-21 22:15:05
解答
ax" + 2axy + ay"
= a(x" + 2xy + y")
= a(x" + xy + xy + y")
= a[ x(x + y) + (x + y)y ]
= a(x + y)"
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