munaaldawoody munaaldawoody

18-05-2016
Mathematics

Answered

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.)

Verified Answer :

yakyzoe yakyzoe

20-05-2016

( 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?

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