Factor Out the Greatest Common Factor $$( x - 9 ) ( x + 7 ) + ( x - 9 ) ( x + 7 )$$

question 285

Multiple Choice

Factor out the greatest common factor. Simplify the factors, if possible.
- $$( x - 9 ) ( x + 7 ) + ( x - 9 ) ( x + 7 )$$

• A) \(2 ( x - 9 ) ( 2 x + 14 )\)
• B) \(2 ( x - 9 ) ( x + 7 )\)
• C) \(( x - 9 ) ( 2 x + 14 )\)
• D) \(( x - 9 ) ( x + 14 )\)

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Definitions:

Moon Illusion

The moon illusion is an optical illusion where the moon appears larger when it is close to the horizon than when it is higher in the sky, despite having the same actual size.

Horizon

The line at which the earth's surface and the sky appear to meet, or metaphorically, the limit of a person's knowledge, experience, or interest.

Elliptical

Having an oval shape or relating to an ellipse; also used metaphorically to describe speech or writing that is obscure or lacks completeness.

Perceptual Constancy

The brain's ability to perceive objects as unchanging despite changes in viewing conditions, such as distance or lighting.