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Determine if 9x2 - 42x + 49 can be the area of a square. If so, what would the value of x have to be if the area of the square is 64 square meters? A = s2
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Determine if 9x2 - 42x + 49 can be the area of a square. If so, what would the value of x have to be if the area of the square is 64 square meters?

A = s2

User Kkress
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Yes it can be. (3x-7) by (3x-7) would be one solution for the square, but (7-3x) by (7-3x) would work too.

X would have to be either -(1/3) (which couldnt happen because you cant have negative lengths) so it has to be 5
User Targumon
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