Evaluate the expression for the given value. 3x(x−2), when x=7 please help just give me the straight answer im failing and my mom will kick

Question

Evaluate the expression for the given value. 3x(x−2), when x=7 please help just give me the straight answer im failing and my mom will kick me ouit she aubuses me hellllp

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Thu Thủy 4 years 2021-08-31T18:21:13+00:00 2 Answers 4 views 0

Answers ( )

  1. Xavia
    0
    2021-08-31T18:22:16+00:00
    Reply

    x = 7
    3•7(7 – 2)
    = 3 • 7 • 5
    = 21 • 5
    = 105

    Hope this helps

  2. sori
    0
    2021-08-31T18:22:22+00:00
    Reply

    \longrightarrow{\blue{105}} 

    \large\mathfrak{{\pmb{\underline{\red{Step-by-step\:explanation}}{\red{:}}}}}

    3x \: (x - 2)

    Plugging in the value x\:=\:7 in the above expression, we have

    ➺ \: 3 \times 7 \: (7 - 2)

    ➺ \: 3\times 7 \: (5)

    ➺ \: 3 \times 35

    ➺ \: 105

    Note:-

    \sf\purple{PEMDAS\: rule.}

    P = Parentheses

    E = Exponents

    M = Multiplication

    D = Division

    A = Addition

    S = Subtraction

    \large\mathfrak{{\pmb{\underline{\orange{Mystique35 }}{\orange{❦}}}}}

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