Find all complex roots of the polynomial 2x4–28x2+90.
Write your answer as a list of values separated by commas. Simplify all radicals.

the circle graph is not a function.

step-by-step explanation:

the graph of the circle is not a function.

because for a graph to be a function, each value of x must give one value of y

in the circle, the values of x for -2< x< 2 each give 2 values of y.

hence this is not a function.

f(2x−x2)=−3x2+6x−1

step-by-step explanation:

set up the composite function and evaluate.

f(2x−x2)=−3x2+6x−1

throw the computer

step-by-step explanation:

step-by-step explanation:

bob the banana