Question

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

Answer 1

For questions 1 and 2 , write each expression using a single exponent.

$1) \ x^9:x^2=x^7\\ \\ 2) \ h^{14}:h^{5}=h^9$

For questions 3 and 4, simplify each expression.

$3) \ 4^4:4^6=4^{-2}=\frac{1}{4^2}=\frac{1}{16}\\ \\ 4) \ 5^0=1$

For questions 6-8, multiply the following polynomial.

$6) \ -2r(8r+5)=-16r^2-10r\\ \\ 7) \ 4a(a^2+7a+4)=4a^3+28a^2+16a\\ \\ 8) \ (2y-3)(3y-2)=6y^2-4y-9y+6=6y^2-13y+6$