Answer:
a.) 3.236 or -1.236
Step-by-step explanation:
Used an online calculator for this answer...
Using the Quadratic Formula where

The discriminant b^2−4ac > 0
so, there are two real roots.
Simplify the radical...

This simplifies to...

Number 10 for what? i don't see anything
The answer is <span>A. 9.5m^2+1.5n
</span>
7m² + 6.5n - 4n + 2.5m² - n =
7m² + 2.5m² + 6.5n - 4n - n =
9.5m² + 1.5n
Answer:
54
Step-by-step explanation: