Ask Question
26 December, 06:25

if 7 is added to the square of and integer, the result is 2 less than 10 times that integer. find the integer

+4
Answers (1)
  1. 26 December, 07:21
    0
    The integer is 1 or 9.

    Step-by-step explanation:

    Let the integer be x, then:

    x^2 + 7 = 10x - 2

    x^2 - 10x + 9 = 0

    (x - 9) (x - 1) = 0

    x = 1, 9.

    Verifying

    9^2 + 7 = 88

    10*9 - 2 = 88 So 9 is correct.

    1^2 + 7 = 8

    10*1 - 2 = 8 So 1 is also correct.
Know the Answer?
Not Sure About the Answer?
Find an answer to your question ✅ “if 7 is added to the square of and integer, the result is 2 less than 10 times that integer. find the integer ...” in 📘 Mathematics if you're in doubt about the correctness of the answers or there's no answer, then try to use the smart search and find answers to the similar questions.
Search for Other Answers