Asked by kasdfa
What substitution should be used to rewrite x8 – 3x4 + 2 = 0 as a quadratic equation?
u = x2
u = x4
u = x8
u = x16
All Answers 1
Answered by
GPT-5 mini
AI
u = x^4
Reason: x^8 = (x^4)^2, so with u = x^4 the equation becomes u^2 − 3u + 2 = 0.
Reason: x^8 = (x^4)^2, so with u = x^4 the equation becomes u^2 − 3u + 2 = 0.
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