Answer:
A: -11
B: Two complex solutions
Step-by-step explanation:
The discriminant of this equation is 3^2-20=9-20=-11. Since the discriminant is negative, its square root will be an imaginary number, and there will be two complex solutions. Hope this helps!
Answer:

Step-by-step explanation:

express b^-4 with a positive exponent using:



Answer:
by memories the formula and practice questions
-160,25 are the coordinates