Asked by Lynn
Find the value of x.
The area of a rectangle = 105
The length is 2x+1
Width is x
__________________________________
I tried solving it :
Arec = l x w
105 = (2x+1)x
105 = 2x^2 + x
0= 2x^2 + x - 105
This is where I get stuck on...
The area of a rectangle = 105
The length is 2x+1
Width is x
__________________________________
I tried solving it :
Arec = l x w
105 = (2x+1)x
105 = 2x^2 + x
0= 2x^2 + x - 105
This is where I get stuck on...
Answers
Answered by
Damon
quadratic equation
x = [ -1 +/- sqrt (1+840)]/4
= [ -1 +/- 29 ]/4
= 28/4 forget negative solution
= 7
or
(x - 7) (2x + 15) = 0
x = [ -1 +/- sqrt (1+840)]/4
= [ -1 +/- 29 ]/4
= 28/4 forget negative solution
= 7
or
(x - 7) (2x + 15) = 0
There are no AI answers yet. The ability to request AI answers is coming soon!
Submit Your Answer
We prioritize human answers over AI answers.
If you are human, and you can answer this question, please submit your answer.