Which of the following is a solution of 4x2 = - 9x - 4?

Question

anonymous · Answer

First things first, you may want to bring the terms on the right over.

anonymous · Answer

done i plug it in and everything but i get.
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anonymous · Answer

@Indivicivet

anonymous · Answer

$$b^2-4ac = 9^2-4^3 = 81-64 = 17$$Looks good to me!

anonymous · Answer

but its not on the answers @Indivicivet

anonymous · Answer

What are the answers? Did you make a mistake transcribing somewhere or did we both manage to mess up? ^^

anonymous · Answer

Which of the following is a solution of 4x2 = - 9x - 4?

anonymous · Answer

@Indivicivet

anonymous · Answer

The last one matches up and the "x-" looks like a formatting error to me. ^^;

anonymous · Answer

i hope so thanks!!
Can i show you another one i'm stuck in?

anonymous · Answer

Sure.

anonymous · Answer

the one in the bottom is my answer

anonymous · Answer

What kind of baseball player hits a ball straight up?! Anyway...

$$0 = -16t^2 + 64t + 4 = 4t^2 - 16t - 1$$
Does that help?

anonymous · Answer

haha yeah. I'm gonna try it now thanks!

anonymous · Answer

didn't really help :/ @Indivicivet

anonymous · Answer

Using the quadratic formula, I get $$2 \pm 4\sqrt{17}$$in my head, using the answers for minor guidance. You seemed fine on the first part; do you know what's tripping you up here?