SOLUTION: Can I please get block of instructions on how answer for this problem. The area of a rectangle of lenght x is given by 3x^2 +5x. Find the width of the rectangle. Thank you so

Question 101176: Can I please get block of instructions on how answer for this problem.
The area of a rectangle of lenght x is given by 3x^2 +5x. Find the width of the rectangle.
Thank you so much.
Answer by Earlsdon(6294) (Show Source): You can put this solution on YOUR website!
1. Start with the formula for the area of a rectangle:
where L = the length and W = the width.
But, you are given the length as x so L = x.
And you are given the area as , so , so now you can write:
You can rewrite this as:
Here, we factored an x.
So, to find W, divide both sides by x.

RELATED QUESTIONS
-3x+1=5-2x I know the answer is -4 because it is in the back of the book. can you... (answered by ankor@dixie-net.com)

I need to identify the varialbe of the following: A rectangle has a lenght of 15cm. what (answered by jim_thompson5910)

The area of a rectangle of lenght x is give by 3x^2+5x. Find the width of the... (answered by dolly)

The area of a rectangle of length x is given by 3x^2+5x. Find the width of the rectangle. (answered by checkley71)

I don't understand this problem....Please help explain this one. Geometry: The area of (answered by adamchapman)

The area of a rectangle of length x is given by 3x^2+5x. Find the width of the rectangle. (answered by checkley75,ankor@dixie-net.com)

The lenght of a rectangle is twice its width with an area of 2yds^2. I got that... (answered by stanbon)

If the area of this rectangle is 105cm2 then the length is ____cm, the width is ____ cm,... (answered by Earlsdon)

Please help, I am lost at how to do this problem. The combined area of a square and a... (answered by scott8148)