Will put brainliest if correct One of the zeros of the polynomial function is 5.

f(x)=x4−4x3−21x2+100x−100

What is the factored form of the function?

f(x)=(x−5)(x+5)(x−2)2

f(x)=(x−2)2(x−5)2

f(x)=(x−2)(x+2)(x−5)2

f(x)=(x−5)(x+5)(x−2)(x+2)

At wind speeds above 1000 centimeters per second (cm/sec), significant sand-moving events begin to occur. wind speeds below 1000 cm/sec deposit sand and wind speeds above 1000 cm/sec move sand to new locations. the cyclic nature of wind and moving sand determines the shape and location of large dunes. at a test site, the prevailing direction of the wind did not change noticeably. however, the velocity did change. fifty-nine wind speed readings gave an average velocity of x = 1075 cm/sec. based on long-term experience, σ can be assumed to be 245 cm/sec. (a) find a 95% confidence interval for the population mean wind speed at this site. (round your answers to the nearest whole number.) lower limit cm/sec upper limit cm/sec