Find the real values of x satisfying the following equations a x 4 5x 2 4 0 b x 4 x 2 6 0 c x 4 20x 2 64 0 d x 4 2x 2 8 0 e x 4 4x 2 21 0 f 2x 4 17x 2 9 0 g 4x 4 6 11x 2 h 2 x 4 1 x 2 6 i 8 x 6 7 x 3 1 ...

a Let y x2 then the equation becomes y2 5y 4 0 which factors as y 1y 4 0 Thus y 1 or y 4 which means ...

Find the real values of x satisfying the following equations. a. x 4 5x 2 +

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Find the real values of x satisfying the following equations.

a. x⁴ – 5x² + 4 = 0

b. x⁴ + x² – 6 = 0

c. x⁴ – 20x² + 64 = 0

d. x⁴ + 2x² – 8 = 0

e. x⁴ – 4x² – 21 = 0

f. 2x⁴ – 17x² – 9 = 0

g. 4x⁴ + 6 = 11x²

h. 2/x⁴ + 1/x² = 6

i. 8/x⁶ + 7/x³ = 1

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Cambridge IGCSE And O Level Additional Mathematics Coursebook

ISBN: 9781108411660

2nd Edition

Authors: Sue Pemberton

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Question Posted: Aug 24, 2021 12:28 AM

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Find the real values of x satisfying the following equations. a. x 4 5x 2 +

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a Let y x2 then the equation becomes y2 5y 4 0 which factors as y 1y 4 0 Thus y 1 or y 4 which means ...View the full answer

Cambridge IGCSE And O Level Additional Mathematics Coursebook

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