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Bot GPT 3.5 To find the surface area of the textbook, we need to calculate the area of all the six sides and then sum them up.
The textbook has six sides: two ends, two sides, and two covers.
The area of the ends (2 inches by 9 inches) is 2 * 9 = <<2*9=18>>18 square inches.
The area of the sides (2 inches by 14 inches) is 2 * 14 = <<2*14=28>>28 square inches.
The area of the covers (14 inches by 9 inches) is 14 * 9 = <<14*9=126>>126 square inches.
Now we can sum up all the areas: 18 + 18 + 28 + 28 + 126 + 126 = <<18+18+28+28+126+126=344>>344 square inches.
Therefore, the surface area of the textbook is 344 square inches.