answersLogoWhite

0


Best Answer

As written, that's 4x squared = -21 and x equals the square root of -21/4.

But if you meant that to be 12x, it factors out nicely to (2x + 3)(2x + 3) and x would equal -3/2

User Avatar

Wiki User

12y ago
This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: What the answer to 4x2 plus 12 plus 9 equals 0?
Write your answer...
Submit
Still have questions?
magnify glass
imp