(7m+6) (6m^2+4m+4) I really suck at math

Evaluate the expression. (9 + 5)(3 + 2)0

Which sum or difference identity would you use to verify that cos (180° - q) = -cos q? a.) sin (a -b) = sin a cos b – cos a sin b b.) cos (a -b) = cos a cos b – sin a sin b c.) cos (a -b) = cos a cosb + sin a sin b d.) sin (a + b) = sin a cos b + cos a sin b

Need solving this 2nd limit problem.