Which of the following is not a zero of f (x) = (x2 - 4x + 4) (x2 + 3x - 10) = 0

Only 2 and - 5 are roots. Any other number is not a root.

Step-by-step explanation:

The zeros of the function are the x-intercepts and are found by factoring the equations and solving for x using the zero product property.

The f (x) = (x2 - 4x + 4) (x2 + 3x - 10) = 0 can factor into

f (x) = (x - 2) (x-2) (x+5) (x-2) = 0.

Set each factor equal to 0 and solve.

x - 2 = 0 so x = 2. This repeats twice.

x + 5 = 0 so x = - 5.

So the zeros are 2, - 5.