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3060.
Answer: 42 m² = 452.084 ft²
6.4807407
It is a quadratic equation and the value of x is -7 or 6 x2 - 42 = (-x) x2 + x - 42 = 0 (x + 7) (x - 6) = 0
42 to the second power, also known as 42 squared, 422 = 42 x 42 = 1764.