A significant outcome is a meaningful result of an experiment as determined by statistical analysis. <span>Statistically significant results are those that are interpreted not likely to have occurred purely by chance and thereby have other underlying causes for their occurrence.</span>
Answer:

Step-by-step explanation:
The complete question in the attached figure
we have

we know that
(ab)(x) is equal to the product of a(x) and b(x)
so

Applying distributive property



This is a quadratic equation
The other expressions not produce a quadratic equation
Answer:
you muliply first 9×7 and then carry the remainder to the other side and then 9×2 and add the remainder