Problem of the Week

Updated at Jan 13, 2014 9:07 AM

How would you find the factors of x2+7x+12{x}^{2}+7x+12?

Below is the solution.



x2+7x+12{x}^{2}+7x+12

1
Ask: Which two numbers add up to 77 and multiply to 1212?
33 and 44

2
Rewrite the expression using the above.
(x+3)(x+4)(x+3)(x+4)

Done
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