a tailor trims 7 feet from opposite edges of a square piece of cloth , and 5 feet from the other two edges . if 45 square feet of cloth remain , what was the length of a side of the original piece of cloth ?
"let the original side of the square be x . ( x - 14 ) * ( x - 10 ) = 45 = 5 * 9 x = 19 the answer is d ."
divide(add(add(multiply(const_2, 7), multiply(const_2, const_3.0)), sqrt(add(multiply(7, subtract(45, multiply(multiply(const_2, 5), multiply(const_2, 7)))), power(add(multiply(const_2, 7), multiply(const_2, 5)), const_2)))), const_2)