erica10070 erica10070

09-02-2017
Mathematics

contestada

x²+7x+12=0
how do you solve

Respuesta :

itsquestionable101 itsquestionable101

09-02-2017

With these types of probe lens with no coefficient for x, all you have to do is find two number that multiply to be 12, and those same two numbers must add to be 7.
Answer: (x+3)(x+4) because 3 and 4 multiply to be 12 as well as add to be 7.

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