What is the product? (6 r- 1)(- 8 r- 3)

Question

What is the product?

(6 r- 1)(- 8 r- 3)

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Thu Giang 3 years 2021-08-21T07:12:53+00:00 1 Answers 9 views 0

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  1. thuhuong
    0
    2021-08-21T07:14:36+00:00
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    Answer:

    -48r^{2} – 10r + 3

    Step-by-step explanation:

    FOIL method

    First : (6r) · (- 8r) = – 48r^{2}

    Outer : (6r) · (-3) = -18r

    Inner : (-1) · (-8r) = 8r

    Last : (-1) · (-3) = +3

    combine like terms

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