Question

2. Here is how Elena solves the quadratic equation x² – 3x – 18 = 0​

Answer 1

Answer:

$(x+3)(x-6)$

Step-by-step explanation: The signs should be reversed because 3 and -6 are like an equation. Subtract 6 from 3 to get -3. That is why the second value is -3x. The answer to the quadratic equation is actually $x=3$ or $x=-6$.