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9. The side of a square is 2x - 5. Find its area.
A. 4x2 + 12x + 25 sq. units
C. 4x²-7x - 25sq.units
B. 4x2 - 20x + 25 sq. units
D. 4x²+20x + 25sq.units​


Sagot :

Answer:

B. 4x²-20x+25 sa. units

Step-by-step explanation:

The formula for the area of a square is s² (side²).

(a-b)²= a²-2ab+b²

(2x-5)=(2x)² -2(2x*5) + (-5)²

= 4x² - 20x + 25