Ask your own question, for FREE!
Mathematics 8 Online
OpenStudy (anonymous):

help

OpenStudy (anonymous):

|dw:1440162501476:dw| The rectangle below has an area ofx^2-6x-7 square meters and a width of x-7 What expression represents the length of the rectangle? length= meters

OpenStudy (anonymous):

i dont understand am i suppose to do the equation and find the answer

OpenStudy (jhannybean):

\[A= l\cdot w \iff l = \frac{A}{w}\]

OpenStudy (anonymous):

honlan salang e daehan sin

OpenStudy (jhannybean):

Sorry, don't understand korean :\

OpenStudy (jhannybean):

Is that korean?

OpenStudy (anonymous):

i dont think im supose to find the area just the length=? meters and sorry

OpenStudy (anonymous):

and yes

OpenStudy (jhannybean):

To make things easier, factor out \(x^2-6x-7\)

OpenStudy (anonymous):

swibsali

OpenStudy (jhannybean):

Well, in your answer you will have an expression for the length, as in length = equation.

OpenStudy (anonymous):

in meters like this|dw:1440162954761:dw|

OpenStudy (anonymous):

u jeongmal ilh-eoss-eoyo

OpenStudy (jhannybean):

yes, so if \(l= \dfrac{A}{w}\) and \(A = x^2-6x-7\), how can we factor \(x^2-6x-7\) ?

OpenStudy (anonymous):

(x−7)(x+1)?

OpenStudy (anonymous):

olbaleun gwonli

OpenStudy (anonymous):

@Jhannybean

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!
Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!