Question

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

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

Answer 1

My favorite!
Quadratic formula states:
ax^2+bx+c=0 x=(-b +/- sqrt of (b^2-4ac))/2a
In your case, a=2, b=9, c=4
(-9 +/- sqrt of (9^2-4*2*4))/2*2

simplify that and I will help you finish.

Answer 2

A?

Answer 3

Yes, it is A