A jewelry box has a volume of 14 cubic inches. The area is 7 square inches. What is the height of the jewelry box.
1 answer:
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Answer:
c =
Step-by-step explanation:
To make a perfect square
add ( half the coefficient of the x- term )² to x² + 5x
x² + 5x + ( )²
= x² + 5x +
= (x + )² ← a perfect square
The answer is B. -a+4+5a-a-6
