SOLUTION: What substitution should be used to rewrite x^8 � 3x^4 + 2 = 0 as a quadratic equation? a) u = x^2 b) u = x^4 c) u = x^8 d) u = x^16

SOLUTION: What substitution should be used to rewrite x^8 � 3x^4 + 2 = 0 as a quadratic equation? a) u = x^2 b) u = x^4 c) u = x^8 d) u = x^16

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Question 1039603: What substitution should be used to rewrite x^8 � 3x^4 + 2 = 0 as a quadratic equation?
a) u = x^2
b) u = x^4
c) u = x^8
d) u = x^16
Answer by josgarithmetic(39617) (Show Source): You can put this solution on YOUR website!
Three terms in the quadratic or quadratic-form expression, and the variable is x. You want some new variable, u, so that you can make .

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