x2 +10x + 21 I need to factor the

Question

x2 +10x + 21
I need to factor the

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Xavia 3 months 2021-08-01T13:53:53+00:00 1 Answers 4 views 0

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    2021-08-01T13:55:44+00:00

    Answer:

    (x + 7)(x + 3).

    Step-by-step explanation:

    x^2 +10x + 21

    21 = 7 * 3 and 10 = 7 +3

    so the factors are

    (x + 7)(x + 3).

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