Work out the value of x when
2^30 / 8^9 =2^x

The graph of a function f(x)=(x+2)(x-4). which describes all of the values for which the graph is negative and increasing? all real values of x where x< -2 all real values of x where -2

Prove that (x-2)is factor of p (x)=2x³-3x²-17x+30

Which number line correctly shows 0.8 + 0.3?