Question 398344
The area of a rectangle is given by A = x2 + 4x – 5. Find the value of x if the total area of the rectangle is equal to 7 square units.
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{{{A = x^2 + 4x - 5 = 7}}}
{{{x^2 + 4x - 12 = 0}}}
(x+6)(x-2) = 0
x = -6, 2
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This does not mean that x is the length of either side.