x^2+3x+37=-7x I’m supposed to complete the square but my teacher did not explain it well at all. It would be really great if you showe

Question

x^2+3x+37=-7x
I’m supposed to complete the square but my teacher did not explain it well at all. It would be really great if you showed the steps to get the answer 🙂

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Lệ Thu 4 years 2021-09-05T00:54:29+00:00 1 Answers 8 views 0

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  1. trungdung22
    0
    2021-09-05T00:56:19+00:00
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    Answer:

    x= -74 or -84

    Step-by-step explanation:

    x^2+3x+37=-7x

    x^2+3x+7x+37=0

    x^2+10x+37=0

    this convert to following

    ( - b + - \sqrt{ {b}^{2} } - 4 \times a \times c) \div 2 \times a

    -b= -(10), a= 1, c =37

    according to that

    x= -74 or x= -84

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