Answers

2016-07-26T19:43:27+08:00
Example: x squared-11x+18
find two numbers that:
1.when you add the sum is -11
2.and when you multiply the product is 18
-9 and -2
1.-9+-2=-11
2.-9(-2)=18
then,the square root of x squared is x
so the answer will be: (x-9)(x-2)


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