What errors did Lewis make? Check all that apply.
He simplified
400 incorrectly. It should be 20 instead of 200,
He found the difference between the hypotenuse and the short leg instead of the long leg
He evaluated 122 incorrectly. It should be 12(2)- 24
He evaluated 162 incorrectly. It should be 16(2) - 32
He should not have taken the square root of each side to get rid of the exponent.