Answer:
The sum of its root is -15/4 and the product of its root is 9/4
STEP BY STEP Step-by-step explanation :
To find the sum of the root -b/a gonna help us
so let's substitute the numbers.
4x^2+15x+9, from the equation
a=4
b=15
c=9
then -b/a => -15/4.
to find the product of the root we use c/a then,
c/a => 9/4.
I hope it help you a lot thank you guys