if a-b=0.9 and ab=0.36 find, (i) a + b and (ii) a^2-b^2​

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if a-b=0.9 and ab=0.36 find, (i) a + b and (ii) a^2-b^2​

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Kim Cúc 3 years 2021-08-15T17:08:54+00:00 1 Answers 0 views 0

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    2021-08-15T17:10:13+00:00

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Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )