89.0k views
13 votes
What is the discriminant of the quadratic equation 2x + 5x = 1?

0-18
0-16
022
24

User ColdLogic
by
8.8k points

2 Answers

10 votes

The discriminant of the quadratic equation 2x + 5x2 = 1 is 24.

--

Use this formula

  • b²-4ac

Plug in

You get 24

User Quentin Donnellan
by
7.9k points
5 votes

Answer:

24

Explanation:

Discriminant

b² - 4ac (when ax² + bx + c = 0)

Assuming the given equation is: 2x + 5x² = 1

Rewrite the equation so that it equals zero:

⇒ 5x² + 2x - 1 = 0

Therefore, a = 5 b = 2 c = -1

Input these into the discriminant formula and solve:

⇒ 2² - 4(5)(-1) = 4 + 20

= 24

Therefore, the discriminant of the quadratice equation is 24.

User Sir Robert
by
8.5k points

No related questions found

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.