Ask Question
25 November, 20:13

Use substitution method & show your work.

y = x^2 + 3x - 1

4x + 1 = y

+4
Answers (1)
  1. 25 November, 22:08
    0
    4x + 1 = x^2 + 3x - 1

    4x = x^2 + 3x - 2

    0 = x^2 - x - 2

    0 = x^2 - x + 1 - 3

    0 = (x - 1) ^2 - 3

    3 = (x - 1) ^2

    sqrt 3 = (x-1) and ( - (x-1))

    x = 1+sqrt 3 and 1-sqrt 3

    sqrt means square root
Know the Answer?
Not Sure About the Answer?
Find an answer to your question ✅ “Use substitution method & show your work. y = x^2 + 3x - 1 4x + 1 = y ...” 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