Question

Solve the following using the quadratic formula. Round to the nearest tenth if necessary.

2x2 + 9x + 4 = 0
A. {-4, -0.5}
B. {-16, -2}
C. {-8, -1}
D. no real solution

Answer 1

if you see that the answers are rational numbers, try factoring first. no need for formula

Answer 2

try
\[(x+4) (2 x+1) = 0\]

Answer 3

I'm so confused, I don't get what to do.

Answer 4

Help someone please ?

Answer 5

x1,2=(-9+/- sqrt(81-32))/4 =(-9+/- 7)/4 = -4 and -2/4 = -1/2
solutions are -4 and -1/2

Answer 6

Thank you! :)

Answer 7

yw