Can someone tell me the answer and why plss A, B and C are three sets such that A is a subset of B and B is a subset of C.
Which one of the following statements must always be true?
A) B is a subset of A
B) C is a subset of B
C) C is a subset of A
D) A is a subset of C​

Step-by-step explanation:

I think answer is A is subset of C.

Step-by-step explanation:

there are many solutions.

step-by-step explanation:

step 1: simplify both sides of the equation.

4x+6=4x^2+10x−4

step 2: subtract 4x^2+10x-4 from both sides.

4x+6−(4x^2+10x−4)=4x^2+10x−4−(4x^2+10x−4)

−4x^2−6x+10=0

step 3: factor left side of equation.

−2(2x+5)(x−1)=0

step 4: set factors equal to 0.

x=-5/2 or x=1