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## Comment on

(x+2)(x-4)## Why is this answer choice D

## Be careful. We aren't

Be careful. We aren't concluding that x EQUALS -2.5

We're concluding that x is GREATER THAN -2.5

So, for example, x COULD equal -2.3 in which case Quantity B is greater.

Conversely, x COULD equal -1 in which case Quantity A is greater.

Or... x COULD equal -2 in which case the two quantities are EQUAL

So, the answer must be D

## If we had the equality sign

## Be careful, when it comes to

Be careful, when it comes to negative numbers the number with the number with greater the magnitude is the smaller number.

For example, -100 < -5

----------------------

QUANTITY A: x

QUANTITY B: -2

IF the inequality were x ≥ -2.5, then answer would still be D.

If x ≥ -2.5, then...

x COULD equal -2.1, in which case quantity B is greater

x COULD equal -2, in which case the quantities are equal

x COULD equal -1, in which case quantity A is greater

On the other hand, IF the inequality were x ≤ -2.5, then answer would be B.

Does that help?

Cheers,

Brent

## I had the same mistake. Read

## It's a bit confusing. Careful

## Agreed!

Agreed!

## What would the difficulty

## I'd say this is a medium

I'd say this is a medium-level question (in the 150-159 range)

Cheers

Brent