01-11-2019
Mathematics

contestada

The following equation is given.
9-5x2 - 9x +45=0
a. List all rational roots that are possible

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a5904640 a5904640

01-11-2019

5x² - 9x + 45 = 0

Δ = b² - 4.a.c

Δ = (-9)² - 4 . 5 . 45

Δ = 81 - 4. 5 . 45

Δ = -819

There's no real root.

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