Question

Solve. 2x2 + 3x = 20.

Answer 1

ive gotten to (-3+/-root-151)/4 but I cant go anywhere from here... I cant find anything that -151 can simplify down to and my answers are not in radicals

Answer 2

oh and its supposed to be 2x^2 sorry
answer choices are:

Answer 3

\[2x ^{2}+3x=20\]
\[2x ^{2}+3x-20=0\]
Then you do the quadratic equation:
-3+/-√9-(-160)/4
-3+/-√(169)/4
-3+/-13/4
(-3+13)/4=10/4=5/2
(-3-13)/4=-4

Answer 4

your answer would be x = 5/2 and x=-4
just in case, plug the answers back in to make sure they work

Answer 5

so helpful, thank you!

Answer 6

np, you just messed up the part inside the sqroot in the beginning that's all