Find the real values of x satisfying the following equations. a. x 4 5x 2 +
Question:
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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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
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Related Book For
Cambridge IGCSE And O Level Additional Mathematics Coursebook
ISBN: 9781108411660
2nd Edition
Authors: Sue Pemberton
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