The decimal 0.5 is equal to the fraction 1/2. To find this answer, you first look at the place value of the decimal. 0.5 is read as 'five tenths'
So for this polynomial, we will be completing the square. Firstly, what two terms have a product of 20m^2 and a sum of -12m? That would be -10m and -2m. Replace -12m with -2m - 10m: 
Next, factor m^2 - 2m and -10m + 20 separately. Make sure that they have the same quantity inside of the parentheses: 
Now you can rewrite this expression as
. <u>(m - 10) and (m - 2) are your two factors.</u>
Answer:
-22.31
Step-by-step explanation:
subtract both answers to give you that