Answer: The length is: "(x − 70)" ft.
__________________________________________________
Area (A) = Length (L) * width (w) ; that is:
A = L * w ;
We want to solve for the "Length" (L)" ;
So, we can rearrange the equation:
A / w = (L* w) / w ;
to get: A / w = L ;
↔ L = A / w ;
A = (x² <span>− 100x + 2100) ;
w = (x </span><span>− 30)
_____________________________
L = (</span>x² − 100x + 2100) / (x − 30) ;
________________________________
So; (x − 30) * _?__ = x² − 100x + 2100 ?? ,
________________________________________
-30 * _?_ = 2100 ? ; → 2100 ÷ (-30) = -70 ;
-30 − 70 = ? -100?? Yes!
So, the answer is: "(x − 70)" ;
That is: " (x − 30) (x − 70) = x² − 100x + 2100 .
The Length is: "(x − 70)" ft.
______________________________________
Answer:
21 3/4
Step-by-step explanation:
Answer:
Hi! The correct answer is -8 - 4x!
Step-by-step explanation:
Simplify each term
Answer:
(x - 5)(x + 9)
Step-by-step explanation:
