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posted by erin on Wednesday, January 23, 2013 at 12:35pm.
The area of a parallogram is 128 sq miles . Find its base &height . 2x-4. 2x+ 4
A = (2x-4)(2x+4) = 128. 4x^2-16 = 128 4x^2 = 144 x^2 = 36 X = +-6. 2x-4 = 2*6 - 4 = 8 Mi. = Ht. 2x+4 = 2*6 + 4 = 16 Mi = Base. .
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