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Please help me set this question up so I can solve by quadratic equation and by completing the square. When the length of each side of a square is increased by 10 cm, the area is increased by 200 cm².
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Please help me set this question up so I can solve by quadratic equation and by completing the square.

When the length of each side of a
square is increased by 10 cm, the area
is increased by 200 cm². What was
the length of each side of the original
square?

User Venkat V
by
7.6k points

1 Answer

1 vote

Answer:

Step-by-step explanation the answer will be 20 each

:

User Vikas Balyan
by
8.4k points
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