Does anyone know how to do this i have no clue! is needed pls

So to get the constant for a perfect square, divide the x coefficient by 2 and then square that answer. In this case:

-20 ÷ 2 = -10; (-10)² = 100

The missing constant is 100.

logv3(x+2)=1

rewrite in exponential form:

logb(x) = y is equal to b^y =x

b = 3, y = 1

now solve for x:

3^1 = x+2)

x = 3-2

x = 1

see the picture for the graph.