Answer:
x= - 4
Step-by-step explanation:
2 * x^2 + 8 * x = x^2 - 16
2 * x^2 - x^2 + 8 * x + 16 = 0
x^2 + 8 * x + 16 = 0
(x + 4) * (x + 4) = 0
x = - 4
Answer:
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Answer: that's hard
Step-by-step explanation:that's hard
A graphing calculator is a great help for problems of this nature.
x ∈ {-5.63, -0.55, 2.59}
Yes it is a square number