answer me pls i will mark as brainlist
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2
your answer is :
option (1).
option (1).
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drmreddy:
complete the answer
u left it half
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1
let think x^2=a
so 2x^4+1+3x^2
=2a^2 +1+3a (factorise now)
=2a^2+2a+a +1
=(2a+1)(a+1)
a =-1/2. a=-1
x^2 =-1/2. x^2 +1 =0
2x^2+1 =0
So option A is correct
so 2x^4+1+3x^2
=2a^2 +1+3a (factorise now)
=2a^2+2a+a +1
=(2a+1)(a+1)
a =-1/2. a=-1
x^2 =-1/2. x^2 +1 =0
2x^2+1 =0
So option A is correct
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