Which statement about the following equation is true. 2x^2 -9+2=-1

Question

asked Jul 5, 2022 235k views

2 Answers

Shahe · Answer 1 · 2022-07-08T05:36:39+0000

_________

$\:$

2x² - 9x + 2 = -1

2x² - 9x + 2 + 1 = 0

2x² - 9x + 3 = 0

Soo :

D = b² - 4ac

D = (-9)² - 4(2)(3)

D = 81 - 4(6)

D = 81 - 24

D = 57

Option (C.)

Byte Lab · Answer 2 · 2022-07-09T11:06:16+0000

Explanation:

2x² - 9x + 2 = -1

2x² - 9x + 3 = 0

D = b² - 4ac

D = (-9)² - 4.2.3

D = 81 - 24

D = 57

D > 0 , so there are two real roots

Option → C