How many solutions are in this problem y=2x^2+9x

Also if u could, could u tell me if I’m correct if I said the discriminate is 81?

the answer is 31.27mph

step-by-step explanation:

what grade level is this? need to know so i can look in my old textbooks!

the simplified form is

step-by-step explanation:

we want to simplify the expression,

let us change the middle bar to a normal division sign to obtain,

we multiply the first fraction by the reciprocal of the second fraction to obtain,

we factor to obtain,

we cancel the common factors to get,

we simplify to get,

the correct answer is b