How many real solutions does the equation … have?

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Application of Derivatives

JEE Main 2008 · Annual, Paper 1 · Q2705

MathematicsEasy175×since 2002Q2705

How many real solutions does the equation

{x^7} + 14{x^5} + 16{x^3} + 30x - 560 = 0

have?

JEE Main 2008 · Annual, Paper 1 · Q2705

MathematicsEasy175×since 2002Q2705

How many real solutions does the equation

{x^7} + 14{x^5} + 16{x^3} + 30x - 560 = 0

have?