Ask Question
29 April, 03:18

4a^2+8a-20=0

By completing the square

+4
Answers (2)
  1. 29 April, 03:42
    0
    4a² + 8a - 20 = 0

    a = - 8 + / - √ (8² - 4 (4) (-20))

    2 (4)

    a = - 8 + / - √ (64 + 320)

    8

    a = - 8 + / - √384

    8

    a = - 8 + / - 19.59591794

    8

    a = - 8 + 19.59591794 a = - 8 - 19.59591794

    8 8

    a = 11.59591794 a = - 27.59591794

    8 8

    a = 1.449489743 a = - 3.443813782
  2. 29 April, 03:42
    0
    I'm not sure but I think it is a=-1± 6√

    a≈1.44948974, - 3.44948974
Know the Answer?
Not Sure About the Answer?
Find an answer to your question 👍 “4a^2+8a-20=0 By completing the square ...” in 📗 Mathematics if the answers seem to be not correct or there’s no answer. Try a smart search to find answers to similar questions.
Search for Other Answers