例题2 例题2:a 1 4 a a+2 2 2 ÷ 2 a 2a a 4a + 4 a 2a
a 4 a(a 1) a 2a = 2 a(a 2) 4 a2 2
a 4 a(a 2) = 2 4 a a(a 2)
1 = a 2
分式的加减乘除乘方混和运算(1)(5)
2020-12-24 22:54
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例题2 例题2:a 1 4 a a+2 2 2 ÷ 2 a 2a a 4a + 4 a 2a
a 4 a(a 1) a 2a = 2 a(a 2) 4 a2 2
a 4 a(a 2) = 2 4 a a(a 2)
1 = a 2
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