Question

(2x²+1) -4x²=0
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Answer 1

Please find the attachment

Answer 2

Answer:

$(2 {x}^{2} + 1) - 4 {x}^{2} = 0 \\ - 2 {x}^{2} + 1 = 0 \\ - {2x}^{2} = - 1 \\ 2 {x}^{2} = 1 \\ {x}^{2} = \frac{1}{2} \\ x = \sqrt{ \frac{1}{2} }$