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Mathematics
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OpenStudy (micheal1234):
Adele’s lawn has an area of (x² – 5x – 6) square feet and a length of (x + 1) feet. What is the width of the lawn in feet?
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ganeshie8 (ganeshie8):
Is his lawn a rectangle ?
OpenStudy (micheal1234):
dont know
ganeshie8 (ganeshie8):
Let's assume it is a rectangle
ganeshie8 (ganeshie8):
Remember the formula for area of rectangle?
OpenStudy (micheal1234):
sorry it took so long to get back to you computer went on the frights do you think you can set it up for me
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OpenStudy (micheal1234):
ganeshie8
ganeshie8 (ganeshie8):
I'm trying to help you set it up
ganeshie8 (ganeshie8):
Again, what's the formula for area of rectangle ?
OpenStudy (micheal1234):
it is A=wl
ganeshie8 (ganeshie8):
Good.
Substitute the given expressions in that formula
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OpenStudy (micheal1234):
and what is that
ganeshie8 (ganeshie8):
Look at the question
You are given expressions for area and length
ganeshie8 (ganeshie8):
A = w*l
OpenStudy (micheal1234):
so would i divide the to
ganeshie8 (ganeshie8):
Plugging the given expressions in above formula :
\[x^2-5x-6 = w*(x+1)\]
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ganeshie8 (ganeshie8):
Yes. Divide (x+1) both sides
ganeshie8 (ganeshie8):
Do you know how to factor the left side quadratic?
OpenStudy (micheal1234):
so (x-6)
OpenStudy (micheal1234):
you still there
ganeshie8 (ganeshie8):
Excellent!
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