x2 = -80
x = (+/-)(-80).5 = (+/-)4isqrt(5)
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7xsquare = 7 x square = 1 x = +1 or -1
1 meter = 3.28084 feet (1m x 1m) = 1 square meter = (3.28084ft x 3.28084ft) = 10.7639 square feet 80 square feet = (80 / 10.7639) = 7.4322 square meters (rounded)
80 ft2 x (12 in/ft)2 = 80x122 = 11520 square inches
To find the area you multiply 138 X 80 this equals 11,040 square ?? You don't say what units you are using so the answer could be square metres, square feet, square yards etc
8' x 10' = 80 square feet