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The rectangle shown has an area of (y^2+8y+15)m^2 what is the width of the rectangle
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4 votes
The rectangle shown has an area of (y^2+8y+15)m^2 what is the
width of the rectangle

User Krichard
by
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1 Answer

2 votes
If the dimensions are "nice" factors of the quadratic, and if y > -3, we have
.. area = (y +3)(y +5)

y+5 is greater than y +3, so we take the width to be ....
.. width = y+3
User Vonte
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