Subtract the first question from the two formulas, and the value of the first question is 9. The second question multiplies the first formula by 4 and subtracts 3 from the second formula, and the answer is 32. The square of the sum of X and Y in the second question is equal to the square of (X-Y) plus 4 times of xy, and the result is 132 (claw machine means pear, hehe).