Which expressions are equivalent to -56z+28

-28(2z-1)

Step-by-step explanation:

Here what you do is factor out the GCF(greatest common factor), which is 28 and then put the rest of the equation: 2z-1 in parenthesis and multiply to check, which makes your equation the same as -56z+28.  I hope this helps.

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.

attachment?

step-by-step explanation: