(2x+1)+3/2x+1=4 সমাধান করতে হবে
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2x+1+3/2x+1=4
=(2x+1)^2+3=4(2x+1)
=4x^2+1+4x+3=8x+4
4x^2-4x+4=4
=4x^2-4x=0
=x-1=0
x=1
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