F(x)=(x−2)^2 -9 Find the solutions

x=1 or x=-5

Step-by-step explanation:

The given function is

The solutions are the roots of the function.

This is where the graph of the function touches the x-axis.

We set the equation to zero to get:

We take square root to get:

see explanation

step-by-step explanation:

since the sequence is geometric there is a common ratio r between consecutive terms, that is

r = 4 ÷ - 2 = - 2

r = - 8 ÷ 4 = - 2

r = 16 ÷ 8 = - 2

the next term - 13 must be incorrect as it should be - 32 for the sequence to be geometric.

the first 4 terms are therefore geometric with common ratio r = - 2