Given:
The quadratic equation is :

To find:
The quadratic formula for the given equation after substituting the values.
Solution:
If a quadratic equation is
, then the quadratic formula is:

We have,

In this equation,
.
Substituting
in the above formula, we get

Therefore, the required quadratic formula for the given equation after substituting the values is
.
Answer:

; Approx. 1884.95559215 
Step-by-step explanation:

Combine the like terms
1.7m^2 + 2.5m^2 + 6.5n - 4n - n
4.2 m^2 + 1.5 n
Answer:
No, because you forgot to switch the sign when dividing by a negative number. Its the 2nd one
Step-by-step explanation: