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Rational help!

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Area of rectangle is x²-100 square units. width of the rectangle is x²-15+50 over x-5, calculate the length of the rectangle and show the value for x.
asked Nov 28, 2014 in PRECALCULUS by anonymous
reshown Nov 28, 2014 by yamin_math

1 Answer

0 votes

Area of rectangle image square units.

image

image

Width of rectangle image

  • Now factorize the numerator of the above expression.

image

image

image

image

image

Formula for calculating area of rectangle image

Where l  is length and is width of rectangle.

image

image

image

The value of  x  interms of l  is image

The value of  x  interms of is image.

answered Nov 28, 2014 by david Expert
edited Nov 28, 2014 by david

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