Evaluate the expression when y=−2 and z=−5. 10y2z that is 10y to the second power divided by z

Question

Evaluate the expression when y=−2 and z=−5.
10y2z
that is 10y to the second power divided by z

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Thạch Thảo 2 months 2021-07-28T22:04:02+00:00 1 Answers 2 views 0

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    0
    2021-07-28T22:06:00+00:00

    Answer:

    4

    Step-by-step explanation:

    10y^2/ z

    10(-2)^2/-5

    10 ×-2 =-20

    -20÷-5=4

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