4x(−2x−5)+5(6x+2)= ax2+bx+c
in the equation above, a, b, and b are constants. if the equation is true for all values of x, what is the value of 5a+b/c?

the graph above represents the equation y= f(x). based on the graph, at what values of x will the equation y= 1/f(x) be undefined?
select one:
a. x = {0, −2}
b. x = {−3, −1}
c. x = {−0.5, 2.5}
d. x = {−3, 3}

2x(−x−1)+2(4x−3)= ax2+bx+c
in the equation above, a, b, and c are constants. if the equation is true for all values of x, what is the value of a^2⋅b/c2^? you can enter your answer as a fraction, or a decimal to the nearest hundredth.