The area of the rectangle is #(4x-3)# long, by #(2x+5)# wide, how do you find the area of the rectangle?

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Answer 1 · 2018-03-06T18:44:17

#A =8x^2 -14x -15#

You cannot find a numerical value for the area, but you can find an algebraic expression to represent the area.

In a rectangle: #A = l xxb#

#A = (4x-3)(2x+5)#

#= 8x^2+20x-6x-15#

#=8x^2 -14x -15#

If at a later stage, extra information is given about the value of #x#, the actual area could be determined.