SAT Math : How to factor an equation

Study concepts, example questions & explanations for SAT Math

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Example Questions

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Example Question #21 : How To Factor An Equation

Factor 

Possible Answers:

cannot be factored

Correct answer:

Explanation:

This expression can be factored by grouping. 

xcan be factored out of the first two terms. 

-4 can be factored out of the second two terms. 

Now we can factor out the term (x-3). 

x- 4 is a difference of squares. It can be factored into (x + 2)(x - 2). 

 

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