I need help pls I’m really dumb

Express in the simplest form: (x^2+9x+14/x^2-49) / (3x+6/x^2+x-56)

What can each term of the equation be multiplied by to eliminate the fractions before solving? x – + 2x = + x 2 6 10 12

Write the sine and cosine values of a, b, respectively, in the figure for (1) and (2) + explanation.