Question

Find all the zeroes of the equation.

2x4 – 5x3 + 53x2 – 125x + 75 = 0
a)–1, –, ± 5i
b)1,, ± 5i
c)1, , ± 5
d)–1, –, ± 5

Answer 1

sorry not sure bout that one

Answer 2

its okay (:

Answer 3

ok

Answer 4

1 is certainly a root

Answer 5

2x^4 – 5x^3 + 53x^2 – 125x + 75 = 0

Answer 6

also 1.5

Answer 7

so 1 and 1.5? thats not one of the choices..

Answer 8

right theres only 3 roots in the choices
the 1.5 is left out

Answer 9

an equation in x^4 will have 4 roots
the others are +/-5

Answer 10

sorry +/- 5i

Answer 11

so its b

Answer 12

2 real roots and 2 imaginary