Ask Question
1 December, 20:06

y = 2x2 - 3x - 20?

A) x = - 5 and 2

B) x = 5 and - 2

C) x = - 2.5 and 4

D) x = 2.5 and - 4

+4
Answers (1)
  1. 1 December, 20:09
    0
    2x² - 3x - 20

    40

    2 20

    4 10

    5 8

    2x² - 8x 5x - 20

    2x (x - 4) 5 (x - 4)

    (2x + 5) (x - 4)

    2x + 5 = 0 x - 4 = 0

    2x = - 5 x = 4

    x = - 5/2

    C) x = - 2.5 and 4
Know the Answer?
Not Sure About the Answer?
Find an answer to your question 👍 “y = 2x2 - 3x - 20? A) x = - 5 and 2 B) x = 5 and - 2 C) x = - 2.5 and 4 D) x = 2.5 and - 4 ...” 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