Question
In Exercises 11 - 20, solve the system by the method of substitution. Check your solution(s) graphically. $ \left\{\begin{array}{l}y = -2x^2 + 2\\y = 2\left(x^4 - 2x^2 +1\right)\end{array}\right. $
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\] We can substitute $y$ from the first equation into the second equation since both are equal to $y$. Show more…
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