Has anyone done Unit 12 Trigonometry Homework 1 Pythagorean Theorem 2 page homework?

65 8 7 4 5 6 8 4 3 2 1 9 5 6 4 2 1 6 5 1 5 1 3 2 3 5 multiply the third number in the first row by the seventh number in the third row. add this result to the fifth number in the second row. add to this total ten times the fourth number in the third row. subtract the eighth number in the first row from the result.

Which of the following expressions is equal to 2x^2+8

Triangle knm is what is true about the sides of knm