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If its length is 2x-3 feet and its width is 5x+1 feet, what is the actual length and width of the rectangle ? ( a rectangle has an area of 1281 square feet.)
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If its length is 2x-3 feet and its width is 5x+1 feet, what is the actual length and width of the rectangle ? ( a rectangle has an area of 1281 square feet.)
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Sep 14, 2017
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if its length is 2x-3 feet and its width is 5x+1 feet, what is the actual length and width of the rectangle ? ( a rectangle has an area of 1281 square feet.)
Mathematics
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Sankha Rathnayake
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( 2x - 3) X ( 5x +1) = 1281
*it's a quadratic
10x² -13x -3 = 1281 * move 1281 to the left side to equal zero
10x² -13x - 1284= 0
and solve to look for the zeros....
Do you know how to?
Oddmund
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Sep 19, 2017
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Oddmund
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