Which of the following equations are true? Select three that apply. A
(2x−1)(x2+4x+3)=2x3+7x2+2x−3

B
(4x2−3x+6)+(5x2−8)=9x2−3x−2

C
(8x−4x2)+(2x2−5x)=−2x4+3x

D
(4x2+4x−5)−(6x2−5x−3)=−2x2−x−8

E
(3x3−5+2x)−(5x−6+x3)=2x3−3x+1

ANSWER: A, B, E :)

guess at question:

a vertical line intersects the graph of g(x,y) = 0 at two points. what conclusion follows about the function f(x) implicitly defined by g(x,f(x)) = 0?

the domain of f(x) cannot include the x coordinate of any such vertical line.

informally, f(x) is not a function, and

g(x,y)=0 cannot be solved for y uniquely.

the relation r = {(x,y) such that g(x,y) = 0} is a function if

for all (a,b) ∊ r and (c,d) ∊ r, a=c implies b=d.

step-by-step explanation:

where is the diagram? shown below where? ?

step-by-step explanation:

idk wbu

step-by-step explanation: