Question: 1 . 3 . 8 . Show that x - 2 x ^ 5 + l 0 x ^ 2 - 1 has no root

1.3.8. Show that x-2x^5+ l0x^2-1 has no root greater than I. (Hint: Since it is generally easier to show that an equation has no positive root, we are prompted to consider the equivalent problem obtained by making the algebraic substitution x = y + I.)

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