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2x^2-5root2x+4=0 find discriminant |
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Answer» Step-by-step explanation: Discriminant \begin{gathered} = \sqrt{ {B}^{2} - 4AC} \\ = \sqrt{ {5}^{2} - 4 \times 2 \times 4 } \\ = \sqrt{25 - 32} \\ = \sqrt{ - 7} \end{gathered} = b 2 −4ac
= 5 2 −4×2×4
= 25−32
= −7
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