10+x−2x^2<0

tikaj1x 2022-10-17 Answered
10 + x - 2 x 2 < 0
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Answers (1)

espava8b
Answered 2022-10-18 Author has 12 answers
We first rewrite this in standard form: - 2 x 2 + x + 10 < 0
Since the coefficient of the square is negative, we call this a "mountain"-parabola.
y=0 gives us x = 2.5 and x = - 2
Since it's a "mountain", our answers lie outside these points, so:
x < - 2 or x > 2.5
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