Step-by-step explanation:
4x^2-6x-40
2(2x^2-3x-20)
=2(2x+5)(x-4)
Answer: 150,000 = (n - 150)(n + 50)
33,600 = (2w - 40) (w)
<u>Step-by-step explanation:</u>
Let n represent the "number".
then width = n + 50
and length = (n + 50) - 200 --> n - 150
Area = Length x width
150,000 = (n - 150)(n + 50)
************************************************************
Let w represent the width
then width = w
and length = 2w - 40
Area = length x width
33,600 = (2w - 40)(w)
Answer:
B?
Step-by-step explanation:
Answer:
the answer is 4
Step-by-step explanation:
let x= length of the first piece.
second piece is 2x, right
third piece x+5, right
Total, in x-talk, is x + 2x + x+5 and that equals 21 feet, right.
Combine like terms: 4x + 5 = 21. Still with me?
So 4x = 16 (do you see why?)
So, what x must x be is 4
