Question

3. Factorise
x⁴+5x² +9​

Answer 1

Answer:

-3 , √5

Step-by-step explanation:

x^4+5x^2=-9

x^2(x^2+5)=-9

x^2=-9 , x^2=-5

x=-3. , x=-√5

Answer 2

Answer:

please mark as Brilliant

Step-by-step explanation:

the answer is :-

x⁴+5x²+9

x⁴+3x²-3x²+9

1x²(x²+3) - 3(x²+3)

(1x²-3) (x²+3)

Hope it will help you

Please mark as Brilliant answer

please mark as Brilliant answer