Answer:
c
Step-by-step explanation:
just did it on a.pex
<em>Greetings from Brasil...</em>
According to the statement of the question, let X be any number. If this number X has to be less than 15, we can write:
<h2>X < 15</h2>
Answer:7
Step-by-step explanation:
![3x^{2}+2x-1=3x^{2}+3x-x-1= \\ \\ 3x(x+1)-(x+1)=(3x-1)(x+1)](https://tex.z-dn.net/?f=3x%5E%7B2%7D%2B2x-1%3D3x%5E%7B2%7D%2B3x-x-1%3D%20%5C%5C%20%20%5C%5C%203x%28x%2B1%29-%28x%2B1%29%3D%283x-1%29%28x%2B1%29)
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