Answer:
The answer is 5,-5,4i,-4i.
Explanation:
When the equation is divided by -3 it becomes:
If we factorize the equation, the equation will become as:
That means the equation has 2 real zeros.
Also it has 2 complex zeros also. Those are:
-3x^4 + 27x^2 + 1200 = 0
factor out -3
-3(x^4 -9x^2 -400)=0
divide by -3
x^4 -9x^2 -400=0
(x^2-25) (x^+16) = 0
x^2-25=0 x^2+16=0
(x-5)(x+5)=0 x^2=-16
x=5 x=-5 x = 4i x=-4i
Answer: x=5 x=-5 x = 4i x=-4i
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