Algebra 1

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The area of a rectangular floor is 8x+6x-20. The width of the desktop is 2x+4. What is the length of the floor?

  • Algebra 1 -

    was the 8x suppose to be 8x^2??

  • Algebra 1 -

    if it is then the length would be 4x-5
    you just factor it out of the 8x^2+6x-20 since they already give you the other factor which is 2x+4

  • Algebra 1 -

    Yes sorry about that

  • Algebra 1 -

    The length of a rectangle is 5ft greater that 4 times its width the area is 369 sq ft. Whats the lenght?

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