Answer:

Step-by-step explanation:
You would substitute "2x" for every "x" in the function in the same way you would substitute any other number.
So if f(x)=Sqrt[7x²-3x], then: f(2x)=Sqrt[7(2x)²-3(2x)]
=Sqrt[7(4x²)-3(2x)]
=Sqrt[28x²-6x]
Answer:
A
Step-by-step explanation:
Answer:
draw all 100 of two colors to be assured
Step-by-step explanation:
if wrong plz tell me i can help on other things if wrong
4x+2=3x
-2
4x=3x-2
-3
4x-3x=2
1x=2
1x/1x= 2/1
X=2
Answer:
-18
Step-by-step explanation:
you substitute all values of x for 2 and solve from there.