Question

8. Use the quadratic formula to find the zeros of the function y = 2x2 + 3x + 6. Round to the nearest tenth if necessary.
A) {-1.7, 2.3}
B) {-2.4, 2.4}
C) {-2.3, 0.8}
D) no real solution

Answer 1

quadratic is (-b(+or -)sqrt(b^2 - 4ac))/2a
your a=2
b= 3
c=6
just plug and go!!

Answer 2

also notice that the portion of the equation sqrt(b^2 - 4ac) ends up to be sqrt(9-48) which is the square root of a negative.