The product of a rational number and a rational number is rational A. Always True
B. Sometimes True
C. Never True

A

The fact that rational number x rational number = rational number will always remain True.

rational number x rational number = rational number

The answer is A.

Hope it helps!

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

the answer is d. 75%