1.5x squared - 1.4x - 5.2 , < 0 can you explain how to work the problem and how I can solve and graph it on a TI-83 graphing calculator. (don't know how to graph on a calulator) thanks
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1.5x² - 1.4x - 5.2 < 0
Δ = (-1.4)² - 4(1.5)(-5.2) = 33.16
x = (1.4 + Ѵ33.16)/2 or x = (1.4 - Ѵ33.16)/2
x ≈ 2.39 or x ≈ -1.45
-1.45 < x < 2.39
Δ = (-1.4)² - 4(1.5)(-5.2) = 33.16
x = (1.4 + Ѵ33.16)/2 or x = (1.4 - Ѵ33.16)/2
x ≈ 2.39 or x ≈ -1.45
-1.45 < x < 2.39