Answer:
Infinitely many.
Step-by-step explanation:
3x + 2y = 4
-6x - 4y = -8
Note that the second equation is obtained from the first by multiplying the first one by -2. Thus the graph of the 2 equations is the same line and there are infinitely many solutions.
Answer:
-5.3a - 12.72b - 8a² + 2ab
ANSWER

EXPLANATION
The given expression is

The greatest common factor is 2.
We factor 2 to obtain:

The expression in the parenthesis is prime.
This means that the quadratic expression in the parenthesis cannot be factored.
Hence the completely factored form is:
