Which amount is larger and by how much? a positive number a or the same number a increased by 50% and then decreased by 50% of the result?

The original positive number will be more.

Step-by-step explanation:

In order to find this, we can first call the original positive number a. Now to find how much it would be when we add 50% of that, we can create the following equation.

a + .5a = 1.5a

Now we need to take 50% of that result. To do that, we can multiply by .5.

1.5a * .5 = .75a

Since the end result of the adding and subtracting 50% is .75a, we know that it is less than the original number.

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

-7

step-by-step explanation:

x^2 + 18x + 74 = (x + 9)^2 - 81 + 74

= (x + 9)^2 - 7.

so q = -7.