Find two integers whose sum is -23 and product is 132

Question

Find two integers whose sum is -23 and product is 132

in progress 0
Tryphena 3 years 2021-09-02T01:37:08+00:00 1 Answers 0 views 0

Answers ( )

  1. diemthu
    0
    2021-09-02T01:38:24+00:00
    Reply

    Step-by-step explanation:

    Let x and y be two integers

    x * y = 132

    x + y = -23

    x= -23 – y

    y(-23 – y) = 132

    -23y – y^2 = 132

    y^2 +23y + 132 = 0

    (y + 11) (y + 12) = 0

    y = -11 or – 12

    If y = -11 then x + (-11) = -23 -> x = -12

    If y = -12 then x + (-12) = -23 -> x = -11

    So the two integers are -11 and -12

Leave an answer

Browse

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