HELP! Should be easy for people who have taken the class.

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 expression shows the sum of the polynomials with like terms grouped together

What are the solutions for the following system? -2x^2+y=-5 y=-3x^2+5