Which expression is the factorization of x^2+10x+21?

Question

Which expression is the factorization of x^2+10x+21?

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Delwyn 2 weeks 2021-08-29T03:20:55+00:00 2 Answers 0 views 0

Answers ( )

    0
    2021-08-29T03:22:08+00:00

    Answer:

    (x+3)(x+7)

    Step-by-step explanation:

    To factor a trinomial in the form Ax^2 + Bx + C when the A = 1.  You need to find the factors of C that when added or subtracted will give you B.  

    Factors of 21 are either 1,21 or 3,7.  Since +3 and +7 will give you 10 then those will be the two factors you will use.

    Factoring x^2+10x+21 will give you (x+3)(x+7)

    0
    2021-08-29T03:22:13+00:00

    Answer:

    To factor a trinomial in the form Ax^2 + Bx + C when the A = 1.  You need to find the factors of C that when added or subtracted will give you B.  

    Factors of 21 are either 1,21 or 3,7.  Since +3 and +7 will give you 10 then those will be the two factors you will use.

    Factoring x^2+10x+21 will give you (x+3)(x+7)

    Step-by-step explanation:

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