Ask Question
30 March, 16:13

Solve this quadratic equation by completing the square.

x² + 8x = 10

A. X=-4 + / 26

B. x = - 8 + / 26

C. X = - 8 + / 10

D. x = - 4 + / 10

+1
Answers (1)
  1. 30 March, 17:23
    0
    A. x = - 4 + / -√26.

    Step-by-step explanation:

    x^2 + 8x = 10

    using the completing the square identity:

    x^2 + ax = (x + a/2) ^2 - (a/2) ^2:

    (x + 4) ^2 - 4^2 = 10

    (x + 4) ^2 = 26

    x + 4 = ± √26

    x = - 4 + / -√26.
Know the Answer?
Not Sure About the Answer?
Find an answer to your question ✅ “Solve this quadratic equation by completing the square. x² + 8x = 10 A. X=-4 + / 26 B. x = - 8 + / 26 C. X = - 8 + / 10 D. x = - 4 + / 10 ...” 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