Answer:
D) 0
There is 1 real solution.
Step-by-step explanation:
Hi there!
[tex]f(x)= 9x^2+30x+25=0[/tex]
This is written in standard form:
[tex]f(x)=ax^2+bx+c[/tex]
This means:
a=9
b=30
c=25
The discriminant states:
[tex]D=b^2-4ac[/tex]
If D>0, there are 2 real solutions.
If D=0, there is 1 real solution.
If D<0, there are 2 complex solutions.
Plug in the values:
[tex]D=30^2-4(9)(25)\\D=0[/tex]
Therefore, there is 1 real solution.
I hope this helps!
