plz with these questions.for questions 1 and 2 , write each expression using a single exponent.1) x^9/x^22) h^14/h^5for questions 3 and 4, simplify each expression.3) 4^4/4^64) 5^0for questions 6-8, multiply the following polynomial.6) -2r( 8r + 5 )7) 4a( a^2 + 7a + 4 )8) ( 2y - 3 )( 3y - 2 )