Answer:

Step-by-step explanation:

We will start by using the quadratic formula.

We will simplify that and get:

So our answers would be:

You solve it by dividing -40 over -5 then you will get x=8
Answer:
0.
Step-by-step explanation:
The nonpermissible replacement of the variable in an expression is the value of x that will make the denominator of the expression zero.
This problem will therefore be written as -5/3y≠0, and it can't be 0, so 0 is your non permissible replacement.
Hope this helps!