What are the real and complex solutions of the polynomial equation x^4+3x^2-4 a. -1,1 b. 1,2i c. -1,1,-2,2 d. -1,1,-2i,2i

Answer

-1,1,-2i,2i

distance covered by pamela in 9 l of fuel = 99km

let us apply unitary method here.

distance covered by pamela in 1 l of fuel =99/9 =11 km

now let us find distance covered by pamela if she has 12 l of fuel.

distance covered in 12 l = distance covered in 1 l of fuel * 12

we know that distance covered by here in 1 l is 11 km.

so distance covered in 12 l of fuel = 11*12 = 132 km.

c 1 hour

step-by-step explanation:

m = 2e

m = 2 so 2 = 2e

1 = e