I am having trouble with this math equation :Solve the quadratic inequality. Write the solution set in interval notation. x^2-5x-24>0?

👨🏻‍🏫 學術台數學

[匿名]

2017-05-08 9:14 am

回答 (1)

DWRead

2017-05-08 9:18 am

y = x² - 5x - 24 is an up-opening parabola with x-intercepts (-3,0) and (8,0).

x²-5x-24 > 0 for x ∈ (-∞,-3) U (8,∞)

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