Pleas answer quick WILLL GIVE BRAINLIEST Given the expression: 5x10 − 80x2 Part A: Rewrite the expression by factoring out the greatest common factor. (4 points) Part B:Factor the entire expression completely. Show the steps of your work. (6 points)

Step-by-step explanation:

First, extract the greatest common factor of the numerical as well as the variable parts:

the GCF of 5 and 80 is "5", and the GCF between and is   , then:

Now, we can re-write the binomial in parenthesis as a difference o squares to be able to factor out even further:

we now repeat the process for the binomial difference:

So finally the complete factorization is:

the equation for this situation is y=122+45. to solve the equation you would add 45 and 122 to get a total of 167lbs. in conclusion, grace's weight eight weeks ago was 167lbs.