Please help! I will mark you as brainliest!

The answer is 112

Step-by-step explanation:

A significant figure is the first non-zero digit in a set of numbers, and when rounding, if the number that comes after the significant figure is greater than 5, the significant figure is increased by 1.

so for the number fraction:  , the rounding will look like this:

8.2  = 8.0

6.7 = 7.0 ( 7 is greater than 5, so 6 is increased by 1)

0.46 = 0.5 ( 4 is the first non-zero number, and when rounding, it increases to 5, because 6 is greater than 5)

now after the rounding, the new fraction becomes:

f(x) = x^3 -2x^2 -3x

x( x^2 -2x-3)

x( x^2 +x -3x -3)

x( x(x+1) -3(x+1))

x( x-3)( x+1)

so zeroes are 0, 3,-1

its (2) option