answersLogoWhite

0


Best Answer

x² + 5x + 10 = 0

What two numbers multiply to get 10 and add to get 5? (1,10)? (2,5)? No.

There are none, so go to the quadratic formula to get the answers.

(-b±√(b²-4ac))/2a

(-5±√(25-40))/2 {{Uh-oh. Negative determinant, so no real answers at all.}}

(-5±√-15)/2

Answers are (-2.5 + 1.9365i) and (-2.5 - 1.9365i) ■

User Avatar

Wiki User

14y ago
This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: What is X² plus 5x plus 10 equals 0?
Write your answer...
Submit
Still have questions?
magnify glass
imp