what does 9a squared + 2b squared if a=4 and b=7?

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what does 9a squared + 2b squared if a=4 and b=7?

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Nguyệt Ánh 4 months 2021-07-26T02:12:58+00:00 1 Answers 5 views 0

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    2021-07-26T02:14:32+00:00

    Wait is a squared or 9a squared

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