Jeremy solved the equation LaTeX: x^2-x-42=0x 2 − x − 42 = 0 by factoring. Part B: Which of the following are the solutions to

Question

Jeremy solved the equation LaTeX: x^2-x-42=0x 2 − x − 42 = 0 by factoring.

Part B: Which of the following are the solutions to LaTeX: x^2-x-42=0x 2 − x − 42 = 0 ?

in progress 0
Kim Chi 5 years 2021-08-09T10:35:25+00:00 1 Answers 23 views 0

Answers ( )

  1. Acacia
    0
    2021-08-09T10:36:56+00:00
    Reply

    Answer:

    x = 7, -6.

    Step-by-step explanation:

    x^2 – x – 42 = 0

    x^2 – 1x – 42 = 0

    Now -42 = 6 * -7 and 6 – 7 = -1, so we have:

    (x – 7)(x + 6) = 0

    x = 7, -6.

Leave an answer

Browse

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