Answer:
Option B. 
Step-by-step explanation:
we know that
The formula to solve a quadratic equation of the form
is equal to
in this problem we have

so
substitute in the formula
Remember that

substitute

-13x=78
-13x/-13=78/-13
Answers: X=-6
Divide each term in the numerator by the denominator...
2xy^2-1
Answer:
417
Step-by-step explanation:
HOPE THAT HELPED