Answer: A.9+1=x
Step-by-step explanation:

can be written as follows:



since

and

are always positive, except for x=2 and y=-1, when they become 0,
the minimum value of this expression is when x=2, and y=-1, that is -5
Answer: -5
Move all terms to the left side and set equal to zero. then set each factor equal to zero. x=1,-3
Answer:
take 7 from both sides of the inequality which gives 12x <-18
divide both sides by 12 and u get x=-3/2