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Question Number 95766 by I want to learn more last updated on 27/May/20

$$\mathrm{Solve}\mathrm{the}\mathrm{equation}$$$$2^{2\mathrm{x}}-{5\mathrm{x}}^2+4=0$$

Commented by prakash jain last updated on 27/May/20

$$x=2\mathrm{is}\mathrm{one}\mathrm{obvious}\mathrm{solution}.$$$$\mathrm{Rest}\mathrm{you}\mathrm{have}\mathrm{to}\mathrm{numerical}$$$$\mathrm{techniques}.$$$$$$$$\mathrm{You}\mathrm{need}\mathrm{to}\mathrm{provide}\mathrm{some}\mathrm{context}$$$$\mathrm{to}\mathrm{the}\mathrm{quesion}\mathrm{so}\mathrm{that}\mathrm{it}\mathrm{is}\mathrm{clear}$$$$\mathrm{what}\mathrm{is}\mathrm{expected}.$$$$\mathrm{It}\mathrm{is}\mathrm{quite}\mathrm{possible}\mathrm{the}\mathrm{question}$$$$\mathrm{only}\mathrm{expects}\mathrm{you}\mathrm{to}\mathrm{apply}\mathrm{numerical}$$$$\mathrm{techinque}\mathrm{and}\mathrm{you}\mathrm{are}\mathrm{allowed}$$$$\mathrm{to}\mathrm{use}\mathrm{scientific}\mathrm{calculator}(\mathrm{almost}$$$$\mathrm{in}\mathrm{all}\mathrm{exams}\mathrm{after}\mathrm{K}-12).$$

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