Asquare has a side that is (x-3) units long. if the area of the square is 126.5625 sq units, what is the value of x?

14.25 units

Step-by-step explanation:

Area of a square=

Solving the equation using quadratic equation then as attached

x=14.25 units

To prove

x-3=14.25-3= 11.25 units

area=11.25*11.25=126.5625 sq units

The answer is part a: use

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