after one side of a square was enlarged by 3 inches and the other side was enlarged by 3 inches, the area of the shape was doubl
ed. what was the side of the square.
1 answer:
Answer:
The side of original square was 7.24 inches
Step-by-step explanation:
(x+3)(x+3) =2(x)(x)
x² + 6x + 9 = 2x²
reduce:
x² - 6x - 9 = 0
(x + 1.24)(x - 7.24) = 0
x = 7.24
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